**Ars Combinatoria **

**Volume XLII, April, 1996 **

**Zhang Xuebin,** "On the existence of (v,4,1)-RPMD"

**Ursala Lenkewitz and Lutz Volkmann,** "Neighbourhood and degree conditions for the existence of
regular factors"

**Jonathan Keene and Andrew Simoson,** "Balanced strands for asymmetric, edge-graceful spiders"

**Leonid Brailovsky, Dmitri V. Pasechnik and Cheryl E. Praeger,** "Classified of 2-quasi-invariant subsets"

**Terry S. Griggs and Alex Rosa,** "An invariant for one-factorizations of the complete graph"

**Sylvia D. Monson,** "The efects of vertex deletion and edge deletion on the
clique partition number"

**W.-A. Jackson, K.A.S. Quinn and P.R. Wild,** "Quadrics and difference sets"

**Markus Eckstein,** "An upper bound for the depth-r interval number of the
complete graph"

**Robin J. Chapman and Julie Haviland,** "The rotation index of a graph"

**R. Bodendiek and G. Walther,** "On (A,D)-antimagic parachutes"

**R.H. Jeurissen and Th. Bezembinder,** "Enumerating oriented triangle graphs"

**Norbert Sauer and Jozef Siran,** "The chromatic number of the union of two forests"

**Yair Caro,** "Simple proffs to three parity theorems"

**Daniel Slilaty and Jeffrey Vanderkam,** "Bounds on squares of two-sets"

**Dominique Buset,** "Locally P^k_n graphs"

**Wai Chee Shiu,** "Difference sets in groups containing subgroups of index 2"

**L. Brailovsky and M. Herzog,** "Counting squares of two-subsets in finite groups"

**Anant P. Godbole, Sandra E. Thompson and Eric Vigoda,** "General upper bounds for covering numbers"

**Odile Favaron, Evelyne Flandrin, Hao Li and Zdenek Ryjacek,** "Shortest walks in almost claw-free graphs"

**Mirko Hornak and Roman Sotak,** "The fifth jump of the point-distinguishing chromatic
index of Kn,n"

**Mike Jacroux,** "On the construction of m times n magic rectangles where
m and n are both nonprime integers"

**Hongxiang Li and Yixun Lin,** "On the boundary inequality for bandwidth of graphs"

**Khaled A.S. Abdel-Ghaffar,** "On the number of mutually orthogonal partial latin squares"

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