| Identifer | oai:union.ndltd.org:up.pt/oai:repositorio-aberto.up.pt:10216/10853 |
| Date | January 1981 |
| Creators | Trigo, Salvato |
| Publisher | Porto : [Edição do Autor] |
| Source Sets | Universidade do Porto |
| Language | Portuguese |
| Detected Language | Portuguese |
| Type | Tese |
| Format | application/pdf |
| Source | http://aleph.letras.up.pt/F?func=find-b&find_code=SYS&request=000010032 |
| Rights | openAccess |
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