| |
Wagemann, Friedrich Crossed modules Berlin : De Gruyter, 2021. xiv, 393 p. -- (De Gruyter studies in mathematics ; vol. 82) QA169 W345 |
Wagemann
| |
Wagemann, Friedrich Crossed modules Berlin : De Gruyter, 2021. xiv, 393 p. -- (De Gruyter studies in mathematics ; vol. 82) QA169 W345 |