@book { SehendesHerzcoroculatumzueinemEmblemdessptenComenius,
    title = "«Sehendes Herz» (cor oculatum) – zu einem Emblem des späten Comenius",
    author = "Erwin {Schadel}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095058"
}