Proper holomorphic mappings from strongly pseudoconvex domains in $\mathsf{C}^2$ to the unit polydisc in $\mathsf{C}^2$.

Stensones, B. (1989). Proper holomorphic mappings from strongly pseudoconvex domains in $\mathsf{C}^2$ to the unit polydisc in $\mathsf{C}^2$. MATHEMATICA SCANDINAVICA, 65, 129–139. https://doi.org/10.7146/math.scand.a-12271