1.
Hugo Schuchardt an Matthias de Vries (04-3)
2.
Hugo Schuchardt an Matthias de Vries (06-8)
Hugo Schuchardt an Matthias de Vries (10-4)
Hugo Schuchardt an Matthias de Vries (12-5)
Hugo Schuchardt an Matthias de Vries (14-6)
Hugo Schuchardt an Matthias de Vries (17-7)
Hugo Schuchardt an Graziadio Isaia Ascoli (124-B76_8)
Hugo Schuchardt an Vatroslav Ignaz Jagič (23-s-n)
Hugo Schuchardt an Reinhold Köhler (011-S.23-25)
Hugo Schuchardt an Reinhold Köhler (138-S.273-274)