Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Toegepaste Wiskunde

Sprinkhuizen-Kuyper, I. G. (1976). A jacobi series expansion with nonnegative coefficients related to a special class of orthogonal polynomials in two variables. In Stichting Mathematisch Centrum. Toegepaste Wiskunde (TW 163/76). Stichting Mathematisch Centrum.