TY  - BOOK
AU  - Galecki, Andrzej
AU  - Burzykowski, Tomasz
TI  - Linear mixed-effects models using R: a step-by-step approach
SN  - 978-1-4614-3899-1
U1  - 519.682R 
PY  - 2013///
CY  - New York
PB  - Springer
ER  -