TY  - RPRT
A1  - Lanza, S.T.
A1  - Dziak, J.J.
A1  - Huang, L.
A1  - Xu, S.
A1  - Collins, L.M.
T1  - Proc LCA & Proc LTA users' guide (Version 1.2.7)
Y1  - 2011
UR  - http://methodology.psu.edu
PB  - The Methodology Center, Penn State
CY  - University Park

ER  -