TY - CHAP A1 - Tönnissen, Stefan A1 - Teuteberg, Frank T1 - Using Blockchain Technology for Business Processes in Purchasing − Concept and Case Study-Based Evidence T2 - International Conference on Business Information Systems KW - Blockchain KW - Business Process Y1 - 2018 U6 - https://doi.org/10.1007/978-3-319-93931-5_18 PB - Springer, Cham ER -