ZAHARIA, Alexandru. On the Bifurcation Variety of Some Non-Isolated Singularities. Mathematica Scandinavica, Berkeley, CA, United States, v. 77, p. 45–59, 1995. DOI: 10.7146/math.scand.a-12548. Disponível em: https://journals.msp.org/mscand/article/view/1122. Acesso em: 25 jul. 2026.