@inproceedings{inproceedings17fa4e7b,
title   = {Nucleolus organizer regions in hybrids of Piaractus mesopotamicus and Colossoma macropomum ( Pisces , Characidae )},
author = {Foresti, F and Almeida-Toledo, Lurdes Foresti de and Toledo Filho, Sílvio de Almeida},
year = {1988},
booktitle   = {Congress of European Ichthyologists}
}