The cohomology solution and the index theorem on ring surfaces of genus g . Xue, Changfeng, Tan, Wenchang (2007) Revista Colombiana de Matemáticas
The Milnor fiber and the zeta function of the singularities of type f = P ( h , g ) András Némethi (1991) Compositio Mathematica
Topologies defined by some invariant pseudodistances Theodore Barth (1995) Banach Center Publications