@book { HorizontalCollaborationintheMaritimeIndustryPortsandTerminals,
    title = "Horizontal Collaboration in the Maritime Industry: Ports and Terminals",
    author = "Christian {Schwab}",
    year = "2013",
    publisher = "Anchor Academic Publishing",
    address = "Hamburg, Germany",
    url = "https://m.anchor-publishing.com/document/312659"
}