TY - BOOK ID - 139777721 TI - Observations on currents and winds made on board Finnish light-ships during the years 1940, 1941 and 1942 PY - 1947 PB - Helsinki Merentutkimuslaitos DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:139777721 AB - ER -