TY - RPRT TI - Explaining variation in the effects of welfare-to-work programs. AU - David Greenberg AU - Robert Meyer AU - Charles Michalopoulos AU - Michael Wiseman PY - 2003 DO - 10.1177/0193841x03254347 UR - https://pubmed.ncbi.nlm.nih.gov/12959041/ ID - 12959041 ER -