Publications
Differential and Integral Equations | 1993
J. Liang
Rhodes, John (ed.), Monoids and semigroups with applications. Proceedings of the Berkeley workshop on monoids, 1989, Singapore etc.: World Scientific Publishing | 1991
Nonlinear Analysis | 1991
Inverse Problems | 1991
Coimbra: Faculdade de Ciências e Tecnologia da Universidade de Coimbra | 1991
Portugal. Math. | 1991
Lattices, Semigroups, and Universal Algebra | 1990