@book { JanValerinJirsk,
    title = "Jan Valerián Jirsík",
    subtitle = "In the Service of God, Church and Country",
    author = "Rudolf {Svoboda}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b16038",
    url = "https://www.peterlang.com/document/1110839"
}