Ryan72'

BibTeX

@article{DBLP:journals/mst/Ryan72,
  author    = {J. Patrick Ryan},
  title     = {The Shift and Commutativity},
  journal   = {Mathematical Systems Theory},
  volume    = {6},
  number    = {1},
  year      = {1972},
  pages     = {82-85},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}