| |
| Authority heading: | Halbgruppe |
|---|---|
| SWD: | 4022990-7 |
| GND: | 4022990-7 |
| PPN (SWB): | 106305956 |
| Source: | M |
| SWD-Systematiknummer: | 28 |
| Notation DDC: | 512.27 |
| Alternative forms: | Semigroups Semigroupes Semigruppi |
| References: | Assoziatives Gruppoid Semigruppe Hemigruppe |
DNB: Deutsche Nationalbibliothek
