RT Article T1 PROC LCA: A SAS procedure for latent class analysis JF Structural equation modeling VO 14 IS 4 SP 671 OP 694 A1 Lanza, Stephanie T. 1969- A2 Schafer, Joseph L. A2 Lemmon, David R. A2 Collins, Linda M. 1955- LA English YR 2007 UL https://krimdok.uni-tuebingen.de/Record/1912666057 DO 10.1080/10705510701575602