@article{DBLP:journals/dm/BennettW97,
author = {Frank E. Bennett and
Ruizhong Wei},
title = {The existence of Schr{\"o}der designs with equal-sized
holes},
journal = {Discrete Mathematics},
volume = {170},
number = {1-3},
year = {1997},
pages = {15-28},
ee = {http://dx.doi.org/10.1016/0012-365X(95)00353-X},
bibsource = {DBLP, http://dblp.uni-trier.de}
}