@article{articlecb6307eb,
title   = {Variability of the nucleolus organizer regions and the presence of the rdna genes in the supernumerary chromosome of akodon aff. Arviculoides ( cricetidae , rodentia )},
author = {Yonenaga-Yassuda, Yatiyo and Assis, M F L and Kasahara, S},
year = {1992},
journal   = {Caryologia}
}