The main object of this paper is the construction of BIBD’s with \(6 \leq k \leq 11\) and \(\lambda = 1\). These balanced incomplete block designs can be simply constructed from some associated group divisible designs with the number of groups being a prime power, and it is these group divisible designs that are constructed directly. Other related designs are discussed.
Citation
Malcolm Greig. Some Group Divisible Design Constructions[J], Journal of Combinatorial Mathematics and Combinatorial Computing, Volume 027. 33-52. .