@book { SportundGrostadt1870bis1930, title = "Sport und Großstadt 1870 bis 1930", subtitle = "Komparative Studien zur Entstehung bürgerlicher Freizeitkultur", author = "Stefan {Nielsen}", year = "2002", publisher = "Peter Lang Verlag", address = "Berlin, Germany", url = "https://www.peterlang.com/document/1094180" }