@book { LaWorldWideWebeInternetFactoresdecambioyconstantestransformaciones,
    title = "La World Wide Web e Internet. Factores de cambio y constantes transformaciones",
    author = "José Raúl Pérez {Martínez}",
    year = "2018",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/417434"
}