Scott A. Vanstone. Extremal (r, λ)-designs. Discrete Mathematics, 23(1):57-66, 1978. [doi]
@article{Vanstone78-0, title = {Extremal (r, λ)-designs}, author = {Scott A. Vanstone}, year = {1978}, doi = {10.1016/0012-365X(78)90187-5}, url = {http://dx.doi.org/10.1016/0012-365X(78)90187-5}, researchr = {https://researchr.org/publication/Vanstone78-0}, cites = {0}, citedby = {0}, journal = {Discrete Mathematics}, volume = {23}, number = {1}, pages = {57-66}, }