TY - RPRT TI - Task perception as a mediating variable: a contribution to the validation of instructional knowledge. AU - L Luyten AU - J Lowyck AU - F Tuerlinckx PY - 2001 DO - 10.1348/000709901158488 UR - https://pubmed.ncbi.nlm.nih.gov/11449933/ ID - 11449933 ER -