| 000 | 00462 a2200145 4500 | ||
|---|---|---|---|
| 035 | _a | ||
| 090 |
_c27479 _d27479 |
||
| 100 | _aBackelin, Jorgen | ||
| 245 |
_aOn the number of semigroups of natural numbers _cJorgen Backelin |
||
| 260 |
_aStockholm _bStockholms universitet _c1986 |
||
| 300 |
_a20 p _c29 cm |
||
| 490 |
_aReports; Department of mathematics; University of Stockholm _v2 _xISSN 0348-7652 |
||
| 500 | _aCuprinde bibliografie | ||
| 942 |
_aIMAR _cCART _sMD |
||
| 999 |
_c27185 _d27185 |
||