@book { MergersandAcquisitionsintheEnergySector,
    title = "Mergers and Acquisitions in the Energy Sector",
    author = "Robert {Fraunhoffer}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03575-9",
    url = "https://www.peterlang.com/document/1047873"
}