TY - BOOK A1 - Lillard, L.A. A1 - Panis, C.W.A. T1 - Multilevel multiprocess modeling. aML Version 2. User’s guide and reference manual Y1 - 2003 UR - http://www.applied-ml.com/ %[21 March 2014 CY - Los Angeles PB - EconWare ER -