@book { ExaminingtheFoundationsofSolidarityintheSocialEncyclicalsofJohnPaulII,
    title = "Examining the Foundations of Solidarity in the Social Encyclicals of John Paul II",
    author = "Uzochukwu Jude {Njoku}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101220"
}