@article{Rud:62b,
  journal = {Acad. R. P. Rom\^{a}ne Stud. Cerc. Mat.},
  volume = {13},
  title = {Sur la r\'esolution des \'equations bool\'eennes par la m\'ethode de
           {L}\"owenheim},
  author = {Rudeanu, Sergiu},
  year = {1962},
  pages = {295--308},
}