| Title: | On $\alpha$-ideals and generalized $\alpha$-ideals in semigroups (English) | 
| Author: | Miccoli, Maria Maddalena | 
| Author: | Pondělíček, Bedřich | 
| Language: | English | 
| Journal: | Czechoslovak Mathematical Journal | 
| ISSN: | 0011-4642 (print) | 
| ISSN: | 1572-9141 (online) | 
| Volume: | 39 | 
| Issue: | 3 | 
| Year: | 1989 | 
| Pages: | 522-527 | 
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| Category: | math | 
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| MSC: | 20M12 | 
| idZBL: | Zbl 0684.20053 | 
| idMR: | MR1006318 | 
| DOI: | 10.21136/CMJ.1989.102324 | 
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| Date available: | 2008-06-09T15:28:41Z | 
| Last updated: | 2020-07-28 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/102324 | 
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| Reference: | [10] Pastijn F.: Regular locally testable semigroups as semigroups of quasi-ideals.Acta Math. Acad. Sci. Hung. 36 (1980), 161-166. Zbl 0464.20046, MR 0605186, 10.1007/BF01897107 | 
| Reference: | [11] Steinfeld O.: Quasi-ideals in rings and semigroups.Akadémiai Kiadó - Budapest 1978. Zbl 0403.16001, MR 0521258 | 
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