@book { JohannesBrahmsFreebutAlone,
    title = "Johannes Brahms. «Free but Alone»",
    subtitle = "A Life for a Poetic Music. Translated by Ernest Bernhardt-Kabisch",
    author = "Constantin {Floros}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135709"
}