TY  - BOOK
AU  - Wirtz, Bernd W.
TI  - Digital business models : : concepts, models, and the alphabet case study
T2  - Progress in IS
SN  - 9783030130046
U1  - 380  
PY  - 2019///
CY  - Switzerland
PB  - Springer
KW  - Business
KW  - Commerce
ER  -