@book { AcercadelaEspiritualidadMapuche,
    title = "Acerca de la Espiritualidad Mapuche",
    author = "Helmut {Schindler}",
    year = "2006",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1102279"
}