Hao Shen, Jiaying Shen. Existence of resolvable group divisible designs with block size four I. Discrete Mathematics, 254(1-3):513-525, 2002. [doi]
@article{ShenS02:3,
title = {Existence of resolvable group divisible designs with block size four I},
author = {Hao Shen and Jiaying Shen},
year = {2002},
doi = {10.1016/S0012-365X(01)00299-0},
url = {http://dx.doi.org/10.1016/S0012-365X(01)00299-0},
researchr = {https://researchr.org/publication/ShenS02%3A3},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {254},
number = {1-3},
pages = {513-525},
}