1. Introduction to Higher Algebra;Bocher,1907
2. Generalizations of the theorem of de Montessus to two-variable approximants;Chisholm,1975
3. Padé Approximants for Operators: Theory and Applications;Cuyt,1984
4. Multivariate Padé approximants;Cuyt;J. Math. Anal. Appl.,1983
5. Analytic Functions of Several Complex Variables;Gunning,1965