90A10
- : An extension of Fan's fixed point theorem and equilibrium point of an abstract economy. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 31 (1990), issue 4, pp. 723-730
- : A characterization of separable utility functions. (English). Kybernetika, vol. 17 (1981), issue 3, pp. 244-255
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