@book{ title = "Praxis pietatis Gerhardi melica, oder tägliche Übung der Gottseligkeit", author = "Gerhard, Johann,Fabricius, Friedrich", year = "1688", publisher = "Höpfner", address = "Alten Stettin", language = "ger", howpublished = "print", keywords = "Geistliches Lied,Deutsch,Theologie,Hymnologie", pages = "8°", }