LucaRS83'

BibTeX

@article{DBLP:journals/tcs/LucaRS83,
  author    = {Aldo de Luca and
               Antonio Restivo and
               Sergio Salemi},
  title     = {On the Centers of a Language},
  journal   = {Theor. Comput. Sci.},
  volume    = {24},
  year      = {1983},
  pages     = {21-34},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}