Publication
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January 1949 -
January 1949 -
Stelsels van partiele differentiaalvergelijkingen; (Pfaffs probleem enz.) : Cursus 1948/49 Tech Report
January 1949 -
Kristallografische groepen : Cursus najaar 1949 Tech Report
January 1949 -
January 1949 -
Construction of a confidence region for a line Tech Report
January 1949 -
January 1949 -
January 1949