@book { ThePentecostalMovementitsChallengesandPotential,
    title = "The Pentecostal Movement, its Challenges and Potential",
    author = "Nigel {Willis}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03136-2",
    url = "https://www.peterlang.com/document/1047534"
}