@book { MusicalDevelopmentfromaLifespanPerspective,
    title = "Musical Development from a Lifespan Perspective",
    author = "Heiner {Gembris}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101004"
}