FerrariMM97'

@article{DBLP:journals/mscs/FerrariMM97,
  author    = {Gian Luigi Ferrari and
               Ugo Montanari and
               Miranda Mowbray},
  title     = {Structured Transition Systems with Parametric Observations:
               Observational Congruences and Minimal Realizations},
  journal   = {Mathematical Structures in Computer Science},
  volume    = {7},
  number    = {3},
  year      = {1997},
  pages     = {241-282},
  ee        = {http://dx.doi.org/10.1017/S0960129597002284},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}