@book{UBHD-1070568, author={L{\"u}tgen, Kurt}, title={Das R{\"a}tsel Nordwestpassage}, edition={5. Aufl.}, publisher={Arena}, address={W{\"u}rzburg}, year={1969}, pages={340 S.}, language={ger}, note={Literaturverz. S. 332 - 336}, library={UB [Signatur: 70 A 249]}, }