@book{ 0-1048707369, title = {Multi-tier sustainable supply chain management: learning from the minerals case}, series = {Supply-Chain-Management}, author = {Sauer, Philipp Christopher}, address = {Kassel}, publisher = {Kassel University Press}, year = {2019}, isbn = {9783737650748}, language = {English}, url = {http://www.upress.uni-kassel.de/katalog/abstract.php?978-3-7376-5074-8}, url = {https://www.gbv.de/dms/zbw/1048707369.pdf}, url = {https://katalog.ub.tu-freiberg.de/Record/0-1048707369} }