The Feigenbaum functional equation and periodic points. (Short Communication). P. Fischer — 1986 Aequationes mathematicae
A class of symmetric biadditive functionals. P. Fischer; J.P. Mokansi — 1981 Aequationes mathematicae
A class of symmetric biadditive functionals. (Short Communication). P. Fischer; J.P. Mokansi — 1981 Aequationes mathematicae
Molecular Hartree-Fock equations for iteration-variation calculations in momentum space. P. Fischer; M. Defranceschi; ... — 1992 Numerische Mathematik