TY - BOOK ID - 127737284 TI - An empirical analysis of vacancy durations and vacancy flows : cyclical variation and job requirements. AU - Van Ours, Jan AU - Ridder, G. PY - 1989 PB - Groningen : University of Groningen. Institute of economic research, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:127737284 AB - ER -