@article{Hagger2002,
author = {Hagger, M.S. and Chatzisarantis, N.L.D. and Biddle, S.J.H.},
title= {A meta-analytic review of the theories of reasoned action and planned behavior in physical activity: Predictive validity and the contribution of additional variables},
year = {2002},
journal = {Journal of Sport and Exercise Psychology},
volume = {24 },
number = {1},
pages = {3--32},
}