@misc{Schermer, author = {Schermer, Detleff}, title = {Mauerwerk-Kalender 2023}, editor = {Schermer, Detleff and Brehm, Eric}, edition = {48. Jahrgang}, publisher = {Ernst \& Sohn GmbH}, address = {Berlin}, isbn = {978-3-433-03374-6}, language = {de} } @misc{Schermer, author = {Schermer, Detleff}, title = {Mauerwerk-Kalender 2021}, volume = {2021}, editor = {Schermer, Detleff and Brehm, Eric}, edition = {46}, publisher = {Ernst \& Sohn GmbH}, address = {Berlin}, isbn = {978-3-433-03293-0}, doi = {10.1002/9783433610732}, pages = {440}, subject = {Mauerwerksbau}, language = {de} } @misc{Schermer, author = {Schermer, Detleff}, title = {Mauerwerk-Kalender 2022}, volume = {47}, editor = {Schermer, Detleff and Brehm, Eric}, publisher = {Ernst \& Sohn GmbH}, address = {Berlin}, isbn = {978-3-433-03356-2}, doi = {10.1002/9783433611029}, pages = {654}, subject = {Mauerwerksbau}, language = {de} }