Bronstein90'

BibTeX

@article{DBLP:journals/aaecc/Bronstein90,
  author    = {Manuel Bronstein},
  title     = {A Unification of Liouvillian Extensions},
  journal   = {Appl. Algebra Eng. Commun. Comput.},
  volume    = {1},
  year      = {1990},
  pages     = {5-24},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}