On the constructive enumeration of packings and coverings of index oneA. J. PetrenjukDiscrete Mathematics1989Let E be a finite set, IEj = v, and let )c, I, k be integers, 1 <I < k < v. A collection 93 of k-subsets (k-blocks) of E is called a (Iz, 1, k, v)-packing [l, 31 if every I-subset of E is contained… (More)