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| Title | Author(s) | Document type | Organizations | Year |
|---|---|---|---|---|
| Etorkizunerako giza akordioa, ekologiaren mugak gaindituz | Article | 1994 | ||
| Gaur egungo ekologismoaren arriskuak | Article | 1987 | ||
| "The Global 2000" gizadiaren etorkizunaren ikuspegi kezkagarri bat | Article | 1985 | ||
| Euskal basoen hondamendiaren prozesu historikoa | Article | 1985 |
