@book { AmbulanceResponseTimesinDevelopingEmergencyHealthCareSystems,
    title = "Ambulance Response Times in Developing Emergency Health Care Systems",
    author = "Jochen {Schmidt}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640347803",
    url = "https://www.hausarbeiten.de/document/129060"
}