@book{Liebetruth2016, author = {Thomas Liebetruth}, title = {Prozessmanagement in Einkauf und Logistik}, series = {Instrumente und Methoden f{\"u}r das Supply Chain Process Management}, isbn = {978-3-658-09758-5}, doi = {10.1007/978-3-658-09759-2}, year = {2016}, }