@article{muellmann2017,Author = {Muellmann, Saskia and Bragina, Inna and Voelcker-Rehage, Claudia and Rost, Eric and Lippke, Sonia and Meyer, Jochen and Schnauber, Jochen and Wasmann, Merlin and Toborg, Merle and Koppelin, Frauke and Brand, Tilman and Zeeb, Hajo and Pischke, Claudia R.},Title = {Development and evaluation of two web-based interventions for the promotion of physical activity in older adults: study protocol for a community-based controlled intervention trial},Journal = {BMC Public Health},Year = {2017},Pages = {512},Publisher = {BMC Public Health},Doi = {10.1186/s12889-017-4446-x},type = {article}}@COMMENT{Bibtex file generated on }