Walter Wenzel Projective equivalence of matroids with coefficients. [Citation Graph (0, 0)][DBLP] J. Comb. Theory, Ser. A, 1991, v:57, n:1, pp:15-45 [Journal]
Gerhard J. M. van Wee Bounds on packings and coverings by spheres in q-ary and mixed Hamming spaces. [Citation Graph (0, 0)][DBLP] J. Comb. Theory, Ser. A, 1991, v:57, n:1, pp:117-129 [Journal]
Daniel Grieser Counting complements in the partition lattice, and hypertrees. [Citation Graph (0, 0)][DBLP] J. Comb. Theory, Ser. A, 1991, v:57, n:1, pp:144-150 [Journal]
Anne Fontaine An infinite number of plane figures with Heesch number two. [Citation Graph (0, 0)][DBLP] J. Comb. Theory, Ser. A, 1991, v:57, n:1, pp:151-156 [Journal]