@article{Geo:71b,
  journal = {Stud. Cerc. Mat.},
  volume = {23},
  title = {Injective envelopes in the category of regular commutative monoids},
  author = {Georgescu, George},
  year = {1971},
  fjournal = {Studii \c si Cercet\u ari Matematice},
  pages = {1049--1055},
}