Hausherr, Y., C. Quinto, L. Grize, C. Schindler, and N. Probst-Hensch. “Smoking Cessation in Workplace Settings: Quit Rates and Determinants in a Group Behaviour Therapy Programme”. Swiss Medical Weekly, vol. 147, no. 3738, Sept. 2017, p. w14500, doi:10.4414/smw.2017.14500.