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