**Ars Combinatoria****Volume CX, July, 2013**

**Dean Crnkovic and Vedrana Mikulic**, “Unitals, projective planes and other combinatorial structures constructed from the unitary groups U(3,q), q = 3,4,5,7”, pp. 3-13**Shaojun Dai and Ruihai Zhang**, “The 2-(v,13,1) designs with block transitive automorphism”, pp. 15-21**Dinesh G. Sarvate and Li Zhang**, “Decomposition of a 3K_{8t}into H_{2}Graphs”, pp. 23-32**Hacene Belbachir and Farid Bencherif**, “Sums of products of generalized Fibonacci and Lucas numbers”, pp. 33-43**Suzanne M. Seager**, “A Sequential Locating Game on Graphs”, pp. 45-54**Su Wang and Jinhua Wang**, “Two classes of cyclic frames from finite geometries”, pp. 55-63**Yingying Qin, Jianping Ou and Zhiping Xiong**, “On equality of restricted edge connectivity and minimum edge degree of graphs”, pp. 65-70**Augustine O. Munagi**, “Alternating Subsets and Successions”, pp. 77-86**Shu Wen and Zhengfeng Yu**, “Bounds on Hosoya Index Involving Some Other Topological Indices”, pp. 87-96**Yan Zhu, Renying Chang and Xiang Wei**, “The harmonic index on bicyclic graphs”, pp. 97-104**Jens-P. Bode, Dorothee Grimm and Arnfried Kemnitz**, “Hypercube-Anti-Ramsey Numbers of Q_{5}“, pp. 105-111**Xiumei Wang, Aifen Feng and Yixun Lin**, “4-regular bipartite matching extendable graphs”, pp. 113-128**Marilyn Breen**, “Dual Helly-Type Theorems For Unions Of Sets Starshaped Via Staircase Paths”, pp. 129-141**Zhaolin Jiang and Fuliang Lu**, “Sums and products of the Jacobsthal and Jacobsthal-Lucas numbers and their determinantal representation”, pp. 143-151**Nurcan Alp and Alev Firat**, “On Right Derivations Of Weak BCC-Algebras”, pp. 153-160**Chuixiang Zhou**, “Minimum degree and nowhere-zero 3-flows”, pp. 161-178**Mausumi Bose and Rahul Mukerjee**, “Union Distinct Families Of Sets, With An Application To Cryptography”, pp. 179-192**Stefano Innamorati and Daniela Tondini**, “The yin-yang structure of the affine plane of order four”, pp. 193-197**Hacene Belbachir and Amine Belkhir**, “Cross recurrence relations for r-Lah numbers”, pp. 199-203**Yong Ho Yon and Kyung Ho Kim**, “On f-derivations of lattice implication algebras”, pp. 205-215**Jianxiong Tang, Weijun Liu and Jinhua Wang**, “Groups PSL(n,q) and 3-(v,k,1) designs”, pp. 217-226**Zbigniew R. Bogdanowicz**, “Cubic Graphs with Minimum Number of Spanning Trees”, pp. 227-238**Sizhong Zhou, Ziming Duan and Bingyuan Pu**, “Isolated Toughness and Fractional (g,f)-Factors of Graphs”, pp. 239-247**Ayse Dilek Gungor**, “On the lower and upper bounds for the Euclidean norm of a complex matrix and its Applications”, pp. 249-264**Shu-Guang Guo**, “On the Spectral Radius of Cactuses with n Vertices and Edge Independence Number q”, pp. 265-274**Si Li and Le Anh Vinh**, “On the spectrum of unitary Euclidean graphs”, pp. 275-287**Ishak Altun and Duran Turkoglu**, “A Fixed Point Theorem For Weakly Compatible Mappings Satisfying A General Contractive Condition Of Operator Type”, pp. 289-299**Shin-Shin Kao, Hua-Min Huang, Kung-Ming Hsu and Lih-Hsing Hsu**, “Cubic 1-fault-tolerant hamiltonian graphs, Globally 3*-connected graphs, and Super 3-spanning connected graphs”, pp. 301-322**Ping An, Zhantao Huang and Yinglie Jin**, “The diameter and the chromatic number of almost self-complementary graphs”, pp. 323-330**Donna Flint, Bradley Lowery and Daniel Schaal**, “Distinct Rado Numbers for x_{1}+ x_{2}+ c = x_{3}“, pp. 331-342**Dong Wu and Yi Hu**, “Combinatorial Aspects of Mixed Arrangements”, pp. 343-353**Zhifu You and Bolian Liu**, “On the Laplacian-Energy-Like of graphs”, pp. 355-369**D.R. Prince Williams, Jianming Zhan and Hongxing Li**, “On Fuzzy Euclidean ideals”, pp. 371-386**Ariel Levavi**, “Pegging Numbers For Various Tree Graphs”, pp. 387-408**Hanyuan Deng and Wei Zhang**, “Double hexagonal chains with the extremal PI indices”, pp. 409-419**Tao Wang and Deming Li**, “An improved upper bound on the adjacent vertex distinguishing edge chromatic number of a simple graph”, pp. 421-433**Dean G. Hoffman and Sarah H. Holliday**, “Resolvably Decomposing Complete Equipartite Graphs Minus a One-Factor into Cycles of Uniform Even Length”, pp. 435-445**S.M. Sheikholeslami**, “A note on the minus edge domination number in graphs”, pp. 447-453**Joan Gimbert and Nacho Lopez**, “On the construction of radially Moore digraphs”, pp. 455-467**E.M. Elsayed, M. Mansour and M.M. El-Dessoky**, “Solutions of fractional systems of difference equations”, pp. 469-479**Yanna Wang and Bo Zhou**, “A note on skew spectrum of graphs”, pp. 481-485**Abdullah Altin, Rabia Aktas and Bayram Cekim**, “On A Multivariable Extension Of The Hermite And Related Polynomials”, pp. 487-503**Tong Chunling, Lin Xiaohui, Yang Yuansheng and Hou Zhengwei**, “L(2,1)-labeling of flower snark and related graphs”, pp. 505-512**Torina Lewis, Jenny McNulty, Nancy Ann Neudauer, Talmage James Reid and Laura Sheppardson**, “Bicircular Matroid Designs”, pp. 513-523