@inproceedings{terueletal1990,
   author = "Alejandro Teruel and H\'ector Kl\'{\i}e and David Koufaty and Carmen Mora and Rafael Moscarella and Marielba Rojas",
   title = "Parallel Topological Sort, part I",
   booktitle = "Proceedings of PANEL'90, XVI Latin American Conference on Informatics"
   year = "1990"
}