1.
Louis Couturat an Hugo Schuchardt (36-01994)
Leo Spitzer an Hugo Schuchardt (387-11142)
Hugo Schuchardt an Matthias de Vries (06-8)
Hugo Schuchardt an Alessandro D´Ancona (15-HS_ADA_09)
Dirk Christiaan Hesseling an Hugo Schuchardt (06-04683)
Matthias de Vries an Hugo Schuchardt (07-12555)
Matthias de Vries an Hugo Schuchardt (08-12556)
2.
3.
Friedrich Kluge an Hugo Schuchardt (05-05587)
Hugo Schuchardt an Matthias de Vries (14-6)
Matthias de Vries an Hugo Schuchardt (03-12553)