BergstraT83'

@article{DBLP:journals/siamcomp/BergstraT83,
  author    = {Jan A. Bergstra and
               J. V. Tucker},
  title     = {Initial and Final Algebra Semantics for Data Type Specifications:
               Two Characterization Theorems},
  journal   = {SIAM J. Comput.},
  volume    = {12},
  number    = {2},
  year      = {1983},
  pages     = {366-387},
  ee        = {http://dx.doi.org/10.1137/0212024},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}