@book { TheEconomicandEnvironmentalSustainabilityofDualSourcing, title = "The Economic and Environmental Sustainability of Dual Sourcing", author = "Heidrun {Rosic}", year = "2012", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-01787-8", url = "https://www.peterlang.com/document/1067424" }