Die Kur - Kraft für Körper, Seele und den Alltag

2015, Health resorts as gateways for, regional standardised, sports club based exercise programmes to increase the weekly time of moderate – to vigorous – Intensity physical activity: study protocol

Lackinger C., Strehn A., Dorner TE, Niebauer J, Titze S.

BMC Public Health 2015; 15:1265. Doi: 10.1186/s12889-015-2581-9.

https://pubmed.ncbi.nlm.nih.gov/26692015/