Hung-Lin Fu, Christopher A. Rodger, Dinesh G. Sarvate. The existence of group divisible designs with first and second associates, having block size 3. Ars Comb., 54, 1999.
@article{FuRS99, title = {The existence of group divisible designs with first and second associates, having block size 3}, author = {Hung-Lin Fu and Christopher A. Rodger and Dinesh G. Sarvate}, year = {1999}, researchr = {https://researchr.org/publication/FuRS99}, cites = {0}, citedby = {0}, journal = {Ars Comb.}, volume = {54}, }