Die vier und zwantzigste Shiffahrt, 1993: CIP t.p. (Willem Ysbrandsz. Bontekoe) introd. (Willem Ysbrantsz. Bontekoe; b. 1587 in Hoorn, in the Province of Holland; still alive in 1646)
LC manual cat. |b (hdg.: Bontekoe, Willem Ysbrandsz, 1587-1647?)
Grote Winkler Prins encyc. (Bontekoe, Willem Ysbrantz.; b. 6-27-1587; d. after 1630)