1571/5/31: Nikolaus Zurkinden (Bern) to Theodore Beza (Geneva)
M: Gotha, Forschungsbibliothek , A 405, on fols. 620-621 (copy type not yet sepcified)
E: Hippolyte Aubert/Fernand Aubert/Henri Meylan: Correspondance BEZE, 1986, on pages 120-121
1571/6/12: Nikolaus Zurkinden (Bern) to Theodore Beza (Geneva)
1571/9/16: Nikolaus Zurkinden (Bern) to Theodore Beza (Geneva)