TY - ELEC A1 - Rasbash, J. A1 - Charlton, C. A1 - Browne, W.J. A1 - Healy, M. A1 - Cameron, B. T1 - MLwiN Version 2.1 Y1 - 2009 UR - http://www.bristol.ac.uk/cmm/software/mlwin/ PB - University of Bristol CY - Bristol ER -