@book { DieOpernvonAleksandrDargomyskij,
    title = "Die Opern von Aleksandr Dargomyžskij",
    author = "Bettina {Dissinger}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091596"
}