| Identifer | oai:union.ndltd.org:up.pt/oai:repositorio-aberto.up.pt:10216/64544 |
| Date | January 1993 |
| Creators | Porto, Maria da Graça |
| Publisher | Porto : Edição do Autor |
| Source Sets | Universidade do Porto |
| Language | Portuguese |
| Detected Language | Spanish |
| Type | Tese |
| Format | application/pdf, application/pdf |
| Source | http://catalogo.up.pt/F?func=find-b&local_base=UPB01&find_code=SYS&request=000080587 |
| Rights | openAccess |
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