@book { DiebiographischeundsozialeEinbettungintensiverMeditationspraxis,
    title = "Die biographische und soziale Einbettung intensiver Meditationspraxis",
    author = "Antje {Lettau}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100032"
}