@incollection{IvaRud:67b,
  publisher = {Gordon and Breach},
  address = {New York},
  title = {A pseudo-{B}oolean approach to matching problems in graphs with
           applications to assignment and transportation problems},
  author = {Iv{\u{a}}nescu, Petru and Rudeanu, Sergiu},
  year = {1967},
  booktitle = {Theory of Graphs (Internat. Sympos., Rome, 1966)},
  pages = {161--175},
}