@book { Evaluatingrealoptionsasameansforinvestmentappraisalunderuncertaintyanditsdegreeofutilisationbycompanies,
    title = "Evaluating real options as a means for investment appraisal under uncertainty and its degree of utilisation by companies",
    author = "Andreas {Würfel}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832473075",
    url = "https://m.diplom.de/document/222605"
}