@book { InhaltProzessSituation,
    title = "Inhalt - Prozess - Situation",
    subtitle = "Studien zum Theorie-Praxis-Problem in der Allgemeinen Didaktik",
    author = "Roger {Vaissière}",
    year = "1985",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1070814"
}