@article{article1c3d7492,
title   = {Chromosome studies in hypoptopomatinae ( pisces , siluriformes, loricariidae): ii. Zz / zw sex-chromosome system, b chromosomes, and constitutive heterochromatin differentiation in microlepidogaster leucofrenatus},
author = {Andreata, A A and Almeida-Toledo, Lurdes Foresti de and Oliveira, C. and Toledo Filho, Sílvio de Almeida},
year = {1993},
journal   = {Cytogenetics and Cell Genetics}
}