"Zwingelstein, L\u00E9on (1898-1934)"@fr . . "L\u00E9on Zwingelstein" . "1934"^^ . "2018-06-22" . . "1898"^^ . "Zwingelstein" . "1934"^^ . "2018-06-22" . "12131169" . "Zwingelstein"@fr . "12131169" . "1934"^^ . "L\u00E9on"@fr . "L\u00E9on" . . "http://catalogue.bnf.fr/ark:/12148/cb12131169q" . . . "1898"^^ . . "1898"^^ . .