- Environmental impact of oil shale mining in EstoniaValgma, Ingo; Väizene, Vivika; Orru, Mall; Vendla, Silja; Ljaš, Julia; Pensa, Margus; Anepaio, Ain; Milvek, HeliInternational oil shale symposium : Tallinn, Estonia, June 10-13, 20132013 / p. 61
- Influence of oil shale mining on the environment in EstoniaValgma, Ingo; Väizene, Vivika; Orru, Mall; Vendla, Silja; Ljaš, Julia; Pensa, Margus; Anepaio, Ain; Karu, VeikoRessursid ja energiasääst2014
- Possibilities for mitigating negative effects of noise and dust caused by extraction of sand, gravel and peatOrru, Mall; Milvek, Heli; Anepaio, Ain; Vendla, Silja; Valgma, IngoProceedings of the 6th International Conference on Sustainable Development in the Minerals Industry (SDIMI 2013)2013 / p. 577-580 : ill
- Poster of Oil shale mining influence to the environment in EstoniaValgma, Ingo; Väizene, Vivika; Orru, Mall; Vendla, Silja; Ljaš, Julia; Pensa, Margus; Anepaio, Ain; Karu, VeikoInternational oil shale symposium : Tallinn, Estonia, June 10-13, 20132013 / [1] p