2024-11-142024-11-141994-07-181994-07-181994-07-181994-07-18https://gordailua.ueu.eus/handle/123456789/124application/pdfCopyright (c) 1994 Uztarohttps://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/article