AhoU72'

BibTeX

@article{DBLP:journals/jcss/AhoU72,
  author    = {Alfred V. Aho and
               Jeffrey D. Ullman},
  title     = {Equivalence of Programs with Structured Variables},
  journal   = {J. Comput. Syst. Sci.},
  volume    = {6},
  number    = {2},
  year      = {1972},
  pages     = {125-137},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}