@book { DiabetesMellitus,
    title = "Diabetes Mellitus",
    author = "Tim {Strazny}",
    year = "2001",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640023523",
    url = "https://www.hausarbeiten.de/document/103976"
}