@article{Geo:76b,
  journal = {Stud. Cerc. Mat.},
  volume = {28},
  title = {Algebraic structures introduced by forcing},
  year = {1976},
  fjournal = {Studii \c si Cercet\u ari Matematice},
  pages = {161--168},
  number = {2},
  author = {Georgescu, George},
}