@book { GraduateStudyintheUSA,
    title = "Graduate Study in the USA",
    author = "Christopher {McMaster} and Caterina {Murphy}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/978-1-4539-1537-0",
    url = "https://www.peterlang.com/document/1109653"
}