@book { ReinventingMartialArtsinthe21stCentury,
    title = "Reinventing Martial Arts in the 21st Century",
    author = "George {Jennings}",
    year = "2023",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/b17408",
    url = "https://www.peterlang.com/document/1289399"
}