Karp03'

BibTeX

@article{DBLP:journals/cacm/Karp03,
  author    = {Alan H. Karp},
  title     = {Making money selling content that others are giving away},
  journal   = {Commun. ACM},
  volume    = {46},
  number    = {1},
  year      = {2003},
  pages     = {21-22},
  ee        = {http://doi.acm.org/10.1145/602421.602438},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}