@book { FundamentalsofMobileMarketing,
    title = "Fundamentals of Mobile Marketing",
    subtitle = "Theories and practices",
    author = "Shintaro {Okazaki}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1109145"
}