[Α] Εργασίες δημοσιευμένες σε διεθνή περιοδικά με κριτές

J.1 L. Konguetsof, T. Vougiouklis, M. Kessoglides, S. Spartalis, «On cyclic hyper-groups with period», Acta Universitatis Carolinae Matematica et Physica,Vol.28, No1,p.3-7, 1987 (M.R. # 89 c: 20107, Z.M. # 0658.20045).

J.2 T. Vougiouklis, and S. Spartalis, «P-cyclic hypergroups with three characteristic elements»,Annals of Discrete Mathematics (North-Holland), 37, p. 421-426, 1988 (M.R. # 89 e: 20133, Z.M. # 0652.20068).

J.3 S. Spartalis, «A class of Hyperrings», Rivista di Matematica Pura ed Applicata (Aviani Editore), N.4, p. 55-64, 1989 (M.R. # 91 h: 16076, Z. M. # 0719.16025).

J.4 L.Konguetsof, T. Vougiouklis, S. Spartalis, «Sur les hyperstructures tres fines»,Rendiconti di Matematica (Dip. di matematica, Universita degli studi di Roma), Serie VII, Volume 13, p. 297-304, 1993 (M.R. # 95h: 20090, Z.M. # 0804.20052).

J.5 S.Spartalis and T.Vougiouklis, «The fundamental relations on Hv-rings», Rivista di Matematica Pura ed Applicata (Aviani Editore), N. 14, p. 7-20, 1994 (M.R. # 95 h: 16061).

J.6 S.Spartalis, «On the number of Hv-rings with P-hyperoperations», Discrete Mathematics (Elsevier),No 155, p. 225-231, 1996 (M.R. # 97 d: 16054, Z.M. # 0857.16044).

J.7 T.Vougiouklis, S.Spartalis, M.Kessoglides, «Weak hyperstructures on small sets», Ratio Matematica (Libreria dell’ Universita Editrice Pescara),n.12, p.90-96, 1997(C.M.P. # 1778902, Z. M. # 0974.20053).

J.8 S.Spartalis, A.Dramalides, T.Vougiouklis, «On Hv-Group Rings», Algebras Groups and Geometries 15 (Hadronic Press USA),p.47-54, 1998 (C.M.P. # 1674789, Z. M. # 0995.16039).

J.9 R.Miglioratio, S.Spartalis, «Feebly Associative P-hypergroupoids», Rendiconti del Circolo Matematico di Palermo (Dip. di Matematica e Applicazioni dell'Universita degli Studi di Palermo), Serie II, Tomo XLIX, p. 27-40, 2000 (M.R. # 2001 c: 20153, Z.M. # 0954.20042).

J.10 S.Spartalis, “On Hv-semigroups”, Italian Journal of Pure and Applied Mathematics (Forum- Editrice Universitaria Udinese Srl.), N.11, p.9-20, 2001 (M.R. # 2004 f: 20119, Z.M. # pre05058474).

J.11 C.Mamaloukas,S.Spartalis, H.Mazumdar, “MHD Flow of a Newtonian Fluid over a stretching sheet: An approximate solution”, IJCNAA International Journal of Computational and Numerical Analysis and Applications (Academic Publications), Vol.1, No 3, p.299-310, 2002 (C.M.P. # 1893218, Z.M. # 1027.76065).

J.12 Z.Manussaridis,C.Mamaloukas,S.Spartalis, “A prototype DSS Varied Activities Routing”, IJCNAA International Journal of Computational and Numerical Analysis and Applications (Academic Publications), Vol.1, No 3, p.311-322, 2002 (Z.M. # 1046.90535).

J.13 S.Spartalis, “Hypergroupoids obtained from groupoids with binary relations”, Italian Journal of Pure and Applied Mathematics (Forum Editrice Universitaria Udinese), N.16, p.201-210, 2004 (M.R. # 2005 h: 20162, Z.M. # 1140.20051).

J.14 S.Spartalis, G.Vekris, “Information Transport in 2-Port Cell Networks”, Applied Numerical Analysis and Computational Mathematics (WILEY-VCH), No2, p.245-253, 2005 (M.R. # 2006 g: 94054, Z.M. # 0857.16044).

J.15 L.Iliadis,S.Spartalis, “Fundamental Fuzzy Relation Concepts of a D.S.S. for the Estimation of Natural Disasters’ Risk (The case of a trapezoidal membership function)”, Mathematical and Computer Modelling (Elsevier), Volume 42, issues 7-8, p .747-758, 2005 (Z.M. # 1090.91052).

J.16 S.Spartalis, C.Mamaloukas, “Hyperstructures associated with binary relations”, Computers and Mathematics with Applications (Elsevier), Volume 51, issue1, p.41-50 2006 (M.R. # 2006 i: 20082, Z.M. # 1106.08001).

J.17 C.Mamaloukas,S.Spartalis, Z.Manussaridis,“Similarity Approach to the Problem of Second Grade Fluid Over a Stretching Sheet”, Applied Mathematical Sciences (Hikari Ltd), Vol. 1, no. 7, p. 327-338, 2007 (M.R. # 2008b: 35208, Z.M. # pre 02161739).

J.18 S.Spartalis, L.Iliadis,F.Maris,“An Innovative Risk evaluation System estimating its own Fuzzy Entropy”, Mathematical and Computer Modelling (Elsevier), Volume 46, issues1-2, p. 260-267, 2007.

J.19 Z.Manussaridis,C.Mamaloukas,S.Spartalis,"A VRS Dimension Framework for Effective DSS Design", Applied Mathematical Sciences (Hikari Ltd), Vol.1, 2007, no. 41-44, p. 2079–2090, 2007.

J.20 L.Iliadis,S.Spartalis, A.K.Paschalidou, P.Kassomenos, “Artificial Neural Network Modelling of the surface Ozone Concentration”, Ιnternational Journal of Computational and Applied Mathematics–IJCAM (Research India Publications), Volume 2, No2, p. 125-138, 2007.

J.21 S.Spartalis, M.Danikas, G.Andreou, G.Vekris, “Statistical Study of the oil dielectric strength in power distribution transformers”, Journal of Electrical Engineering (Slovak University of Technology), Vol. 59, No 2, p. 68-74, 2008.

J.22 S.Spartalis, L.Iliadis,“Artificial Neural Networks employing Fuzzy Numbers for rapid risk estimation”, Advances in Fuzzy Mathematics-AFM (Research India Publications),Volume 2, Number 1-2, p. 51-64, 2007.

J.23 L.Iliadis,S.Spartalis, S.Tachos,“Application of fuzzy T-norms towards a new Artificial Neural Networks’ evaluation framework: A case from wood industry, Information Sciences (Elsevier), No 178, p. 3828-3839, 2008.

J.24 S.Spartalis, “The Hyperoperation Relation and the Corsini’s Partial or not-Partial Hypergroupoids (A classification)”, Italian Journal of Pure and Applied Mathematics (Forum- Editrice Universitaria Udinese Srl.), No24, p. 97-112, 2008. (M.R. # 2009k: 20143, Z.M. # pre05593439).

J.25 C.Mamaloukas,S.Spartalis, “Decomposition Method in Comparison with Numerical Solutions of Burgers Equation”, Ratio Μathematica, Libreria dell’Universita EditricePescara (Italy), No18, p.51-61, 2008.

J.26 L.Iliadis,S.Spartalis, “An Intelligent Information System for Fuzzy Additive Modelling (Hydrological Risk Application)”, Jranian Journal of Fuzzy Systems, Vol.7, No. 1, p.47-61, 2009.

J.27 S.Spartalis, L.Iliadis, “Risk Modeling by applying Unsupervised Neural Clustering on Fuzzy Conjunction Vectors” δεκτή στο περιοδικό Fuzzy Sets, Rough Sets, Multivalued Operations and Applications.

J.28 L.Iliadis,Μ.Vangeloudi,S.Spartalis, “An intelligent system employing an enhanced fuzzy c-means clustering model: Application in the case of forest fires”, στο στάδιο της εκτύπωσης στο περιοδικό Computers and Electronics in Agriculture, (Elsevier), N.70, p.276-284, 2010.

J.29 S.Spartalis, M.Konstantinidou-Serafimidou, A. Taouktsoglou, “C-hypergroupoids obtained by Special Binary Relations”, Computers and Mathematics with Applications (Elsevier), N.59, p.2628-2635, 2010.

J.30 T. Tsataltginos, L.Iliadis, S.Spartalis, “An Intelligent Fuzzy rule based System for Forest Fire Risk Degree estimation of the Greek terrain”, δεκτή στο περιοδικό Engineering Intelligent Systems (Ms.Ref. No.: EISSI#6).

J.31 L.Iliadis, S.Spartalis, S.Tachos, “Kernal methods and Neural Networks for water resources management”, Environmental Engineering Management Journal, Vol.9, No2, p. 181-187, 2010.

J.32 L.Iliadis, Scopianos S., S.Tachos and S.Spartalis,“Testing Sigmoid and Gaussian fuzzy sets towards forest fire risk modeling”, Engineering Intelligent Systems, Vol. 18 Nos 3/4 September/December 2010, p. 125-132, Curtin university of Technology, Australia, CRL Publising, 2011.

J.33 D Vijay Rao, Lazaros Iliadis, A Papaleonidas, Stefanos Spartalis,, “Modelling Environmental Factors and Effects in Virtual Warfare Simulators by using a Multi Agent approach”,  IJAI,  International Journal of Artificial Intelligence, Volume 9, Number A12, p.172-185, 2012.

J.34 A.Kalampakas, S.Spartalis, K.Skoulariki, “Direct Graphs representing isomorphism classes of C-Hypergroupoids”, RATIO MATEMATIKA 23, p.51-64, 2012.

J.35 P. K. Marhavilas, D.E. Koulouriotis, S.I. Spartalis, “Harmonic Analysis of Occupational-Accident Time-Series as a Part of the Quantified Risk Evaluation in Worksites: Application on Electric Power Industry and Construction Sector”, Reliability Engineering & System Safety (Elsevier), Vol. 112, p.8-25, 2013.

J.36. A. Kalampakas, S. Spartalis and L. Iliadis, “Syntactic Recognizability of Graphs with Fuzzy Attributes”, F.S.S. Fuzzy Sets and Systems (Elsevier), Vol. 229, p.91-100, 2013.

J.37. A. Kalampakas, S. Spartalis and L. Iliadis, I. Pimenidis, “Fuzzy Graphs: Algebraic

Structure and Syntactic Recognition”, Journal Artificial Intelligence Review, Volume 42, Issue 3, p.479-490, SPRINGER (University of Edinburg), 2014.

J.38. A. Kalampakas, S. Spartalis, A. Tsigkas, “The Path Hyperoperation”, ISI Journal Analele Universitatii "Ovidius" Constanta, Seria Matematica, Vol. 01, 22(1), p.141-153, 2014.

J.39. A. Kalampakas, O. Louscou-Bozapalidou, S. Spartalis, “Recognizability in Stochastic Monoids”, Journal Ratio Mathematica, Number 26, p. 65-76, 2014.

J.40. A. Kalampakas, S. Spartalis, “Path Hypergroupoids: Commutativity and Graph Connectivity”, European Journal of Combinatorics, 44, p. 257-264, 2015

J.41. I. Metaxas, D. Koulouriotis and S. Spartalis, “A multicriteria model on calculating the Sustainable Business Excellence Index of afirm with fuzzy AHP and TOPSISH”, Benchmarking: An International Journal. Vol. 23 No. 6, p. 1522-1557, 2016.

J.42 S. Spartalis, A. Kalampakas, “Graph hyperoperations: Path, Simple Path and Common Ancestry”, International Journal of Algebraic Hyperstructures and its Applications, Volume 2, Issue 1, p.41-51, 2016.

J.43 V.D. Anezakis, K. Demertzis, L. Iliadis, S. Spartalis, “Hybrid intelligent modeling of wild fires risk”, Evolving Systems, Springer-Verlag GmbH Germany , pp 1–17, 2017 (DOIhttps://doi.org/10.1007/s12530-017-9196-6).