TY - JOUR A1 - Bakk, Z. A1 - Tekle, F.B. A1 - Vermunt, J.K. T1 - Estimating the association between latent class membership and external variables using bias-adjusted three-step approaches Y1 - 2013 DO - 10.1177/0081175012470644 VL - 43 IS - 1 ER -