Manaf, Paulo; de Brito-Gitirana, Lycia; Oliveira, Elisabeth Spinelli (Jul 2003). “Evidence of chemical communication in the spiny rat Trinomys yonenagae (Echimyidae): Anal scent gland and social interactions”. 《Canadian Journal of Zoology》 81 (7): 1138–43. doi:10.1139/z03-095.