TY - BOOK ID - 130432867 TI - International astronomical union colloquium no. 7: proper motions AU - Luyten, W. J. AU - Astronomical union colloquium (7th : 21-23 April 1970 : Minneapolis (Minn.) PY - 1970 PB - Minneapolis (Minn.): University of Minnesota, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:130432867 AB - ER -