Grossi91'

BibTeX

@article{DBLP:journals/ipl/Grossi91,
  author    = {Roberto Grossi},
  title     = {A Note on the Subtree Isomorphism for Ordered Trees and
               Related Problems},
  journal   = {Inf. Process. Lett.},
  volume    = {39},
  number    = {2},
  year      = {1991},
  pages     = {81-84},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}