Cordero, Luis A.; Fernández, Marisa; Ugarte, Luis Alfred Gray and his influence on universities in Spain. (Spanish) Zbl 1358.01096 Gac. R. Soc. Mat. Esp. 2, No. 1, 67-73 (1999). MSC: 01A70 01A73 PDFBibTeX XMLCite \textit{L. A. Cordero} et al., Gac. R. Soc. Mat. Esp. 2, No. 1, 67--73 (1999; Zbl 1358.01096)
Cordero, Luis A.; Fernández, Marisa; Ugarte, Luis In memory of Alfred Gray. (English) Zbl 0926.01008 Differ. Geom. Appl. 10, No. 3, 203-204 (1999). MSC: 01A70 01A60 PDFBibTeX XMLCite \textit{L. A. Cordero} et al., Differ. Geom. Appl. 10, No. 3, 203--204 (1999; Zbl 0926.01008) Full Text: DOI