UBH Autogr Stickelberger C 1:1(2)
UBH Archiv Bernoulli Ic, Rudolf (1880-1948), Nr.1 (1)
UBH Archiv Bernoulli Ic, Rudolf (1880-1948), Nr.2 (1)
UBH Autogr Geigy-Hagenbach 1291(1)
UBH Autogr Geigy-Hagenbach 1304(1)
UBH Autogr Geigy-Hagenbach 1338(1)
UBH Autogr Geigy-Hagenbach 1367:42a(1)
UBH Autogr Geigy-Hagenbach 1367:8b(1)