@book { CommunicationAcrosstheLifeSpan,
    title = "Communication Across the Life Span",
    author = "Jon F. {Nussbaum}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/978-1-4539-1701-5",
    url = "https://www.peterlang.com/document/1051767"
}