uRun: A Framework for User-Generated Mobile Services in the Health and Fitness Domain. - Alexandra Chapko; Andreas Emrich; Stephan Flake; Frank Golatowski; Marc Gräßle; Andreas Kohlos; Nico Laum; Christian Lerche; Carsten Rust; Jürgen Tacken; Dirk Werth; Carsten Zoth (Int. J. Serv. Sci. Manag. Eng. Technol., 2011)