On the exact minimal (1,4)-cover of twelve points
Sane, Sharad S.
Ars Comb. 27, 3-18 (1989).
Construction of some classes of column-regular BTDs, GDDs and 3-PBIBDs with the rectangular association scheme
Vartak, M. N.; Diwanji, S. M.
Ars Comb. 27, 19-39 (1989).
Square GBRDs over non-Abelian groups
de Launey, Warwick
Ars Comb. 27, 40-49 (1989).
(15,30,14,7,6) dicyclic designs
Wirmani-Prasad, Anjana
Ars Comb. 27, 50-55 (1989).
On existence of pandiagonal magic squares
Sun, Rong-guo
Ars Comb. 27, 56-60 (1989).
Vertex partitions of graphs into k-stable and k-complete subgraphs
Tuza, Zsolt
Ars Comb. 27, 61-62 (1989).
Four mutually orthogonal Latin squares of order 20
Todorov, D. T.
Ars Comb. 27, 63-65 (1989).
On a theorem of Hilton
Zhang, Cun-Quan
Ars Comb. 27, 66-86 (1989).
Hamilton path tournament designs
Horton, J. D.
Ars Comb. 27, 69-74 (1989).
On a PBD generating set problem of Rosa
Mullin, R. C.
Ars Comb. 27, 75-84 (1989).
Partial complementation of designs
Rahilly, Alan
Ars Comb. 27, 85-100 (1989).
Planar lattices and the slope problem
Czyzowicz, J.
Ars Comb. 27, 101-112 (1989).
Order-degree sequences
Bold, Christoph
Ars Comb. 27, 113-116 (1989).
On a construction for μ-resolvable designs
Fanning, J. D.
Ars Comb. 27, 117-120 (1989).
Orthomorphisms of GF(q)+
Evans, Anthony B.
Ars Comb. 27, 121-132 (1989).
Cyclic one-factorization with an invariant one-factor of the complete graph
Korchmáros, Gábor
Ars Comb. 27, 133-138 (1989).
Relative difference sets with multiplier 2
Arasu, K. T.; Pott, A.
Ars Comb. 27, 139-142 (1989).
More results on the orthogonal Latin square graphs
Fu, Hung-Lin
Ars Comb. 27, 143-148 (1989).
On the union-closed sets conjecture
Sarvate, D. G.; Renaud, J.-C.
Ars Comb. 27, 149-154 (1989).
The basis numbers of the direct products of paths and cycles
Ali, Ali A.
Ars Comb. 27, 155-164 (1989).
Forbidden and unavoidable subgraphs
Gernert, Dieter
Ars Comb. 27, 165-176 (1989).
A linear algorithm for breaking periodic Vernam ciphers
Leclerc, Matthias
Ars Comb. 27, 177-180 (1989).
Detecting a counterfeit coin with unreliable weighings
Pelc, Andrzej
Ars Comb. 27, 181-192 (1989).
A characterization of some finite inversive planes
Key, J. D.; Rostom, N. K. A.
Ars Comb. 27, 193-196 (1989).
Some small Kirkman squares
Wallis, W. D.
Ars Comb. 27, 197-200 (1989).
Geodetic graphs of diameter two without Petersen subgraphs
Scapellato, Raffaele
Ars Comb. 27, 201-202 (1989).
On the circumferences of 2-connected bipartite graphs
Dang, Kai-Qian; Zhao, Lian-Chang
Ars Comb. 27, 203-210 (1989).
On association schemes, Schur rings, strongly regular graphs and partial difference sets
Ma, S. L.
Ars Comb. 27, 211-220 (1989).
Two short proofs on chromatic polynomials
Lin, Yixun; Zhang, Fuji
Ars Comb. 27, 221-222 (1989).
