TY - EJOUR T1 - Prediction of attendance at fitness center: a comparison between the theory of planned behavior, the social cognitive theory, and the physical activity maintenance theory AU - Jekauc, Darko AU - Völkle, Manuel AU - Wagner, Matthias O. AU - Mess, Filip AU - Reiner, Miriam AU - Renner, Britta PY - 2015 LA - eng PB - Humboldt-Universität zu Berlin JO - Frontiers in Psychology DO - 10.3389/fpsyg.2015.00121 ER -