@article{DBLP:journals/jct/HedayatK81,
  author    = {A. Sadam Hedayat and
               Gholamreza B. Khosrovshahi},
  title     = {An Algebraic Study of BIB Designs: a Complete Solution for
               v = 6 and k = 3},
  journal   = {J. Comb. Theory, Ser. A},
  volume    = {30},
  number    = {1},
  year      = {1981},
  pages     = {43-52},
  ee        = {http://dx.doi.org/10.1016/0097-3165(81)90039-X},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}