[1]
Opstall, M. van 1977. W.C.H. Robert, Voyage to Cathay, Tartary and the Gold- and Silverrich Islands east of Japan, 1643. BMGN - Low Countries Historical Review. 92, 2 (Jan. 1977), 321–322. DOI:https://doi.org/10.18352/bmgn-lchr.1997.