GriesL80'

BibTeX

@article{DBLP:journals/toplas/GriesL80,
  author    = {David Gries and
               Gary Levin},
  title     = {Assignment and Procedure Call Proof Rules},
  journal   = {ACM Trans. Program. Lang. Syst.},
  volume    = {2},
  number    = {4},
  year      = {1980},
  pages     = {564-579},
  ee        = {http://doi.acm.org/10.1145/357114.357119},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}