@book { LeadersofthePack,
    title = "Leaders of the Pack",
    author = "William D. {Pederson} and Norman W. {Provizer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1096618"
}