@article{01117995,
title = {Efficient covering designs of the complete graph.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {4},
year = {1997},
zbl = {0885.05019},
language = {en},
url = {http://dml.mathdoc.fr/item/01117995}
}
Caro, Yair; Yuster, Raphael. Efficient covering designs of the complete graph.. The Electronic Journal of Combinatorics [electronic only], Tome 4 (1997) . http://gdmltest.u-ga.fr/item/01117995/