@book { EinsteinweiterdenkenThinkingBeyondEinstein,
    title = "Einstein weiterdenken- Thinking Beyond Einstein",
    author = "Stephan {Albrecht} and Reiner {Braun} and Thomas {Held}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101431"
}