Taking as blocks some subspace pairs in a finite unitary geometry, we construct a number of new Balanced Incomplete Block (BIB) designs and Partially Balanced Incomplete Block (PBIB) designs, and also give their parameters.
Citation
Benfu Yang, Wandi Wei. Finite Unitary Geometries and Block Designs[J], Journal of Combinatorial Mathematics and Combinatorial Computing, Volume 023. 197-211. .