Stefan Klein
![Stefan Klein](https://upload.wikimedia.org/wikipedia/commons/5/52/Stefan_Klein_Portrait.jpg)
1
Published: [2020]
Superior document: Title is part of eBook package: De Gruyter DG Plus DeG Package 2020 Part 1
Links: Get full text; Get full text; Cover
2
Published: [2018]
Superior document: Title is part of eBook package: De Gruyter DGBA Business and Economics 1990 - 1999
Links: Get full text; Get full text; Cover