De Vries-Schot, M., Pieper, J.Z. and van Uden, M.H. 2012. Mature Religiosity Scale: Validity of a New Questionnaire. European Journal of Mental Health. 7, 1 (Jun. 2012), 57–71. DOI:https://doi.org/10.5708/EJMH.7.2012.1.3.