Двадцатая всесоюзная выставка дипломных работ : выпуск 1980 г. : каталог
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![Taastuvate energiaallikate uurimine ja kasutamine : viienda konverentsi kogumik : [6. november 2003, Tartu] = Investigation and usage of renewable energy sources : fifth conference proceedings : [6 November 2003, Tartu]](/arhiiv/assets/thumbdef/shelf_empty-0dd7b3d914ab0ca1d1ba007da1745a76.png)