[Death of Professor Pierre Nolf, regular member, and Professor René Sand, honorary member].
D003643:Death; D049672:History, 19th Century; D049673:History, 20th Century; D012822:Silicon Dioxide
D012822:Silicon Dioxide
OBITUARIES
DECES DE M. P. NOLF, membre titulaire, et de M. R. Sand, membre honoraire régnicole.