@book { InternationalEntryModeChoicesofSoftwareFirms,
    title = "International Entry Mode Choices of Software Firms",
    subtitle = "An Analysis of Product-Specific Determinants",
    author = "Jessica {Winkler}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135436"
}