Rademaker, C. C.M. Ridderikhoff, H.J.M. Nellen, Briefwisseling Van Hugo Grotius, XVI, Oktober 1644-Augustus 1645; C.M. Ridderikhoff, H.J.M. Nellen, Briefwisseling Van Hugo Grotius, XVII, Supplement 1583-1645. BMGN-LCHR 2003, 118, 97-99.