Reference
Sérgio Furtado dos Reis, Leila Maria Pessoa (1991): The contribution of cranial indeterminate growth to
non-geographic Variation in adult Proechimys albispinus
(Is. Geoffroy) (Rodentia: Echimyidae) – Mammalian Biology (früher Zeitschrift für Säugetierkunde) – 56: 219 - 224.