On the Chebyshev alternation theorem. Manuel Fernández; María L. Soriano — 1995 Extracta Mathematicae
Suitable norms for simultaneous approximation. Carlos Benítez; Manuel Fernández; María L. Soriano — 1996 Extracta Mathematicae
Location of the 2-centers of three points. MANUEL FERNÁNDEZ and MARÍA L. SORIANO CARLOS BENÍTEZ — 2000 Revista de la Real Academia de Ciencias Exactas Físicas y Naturales