Detection of mine collapses with seismic methods in the Estonian oil shale mining areaOtsmaa, Merle; Soosalu, Heidi Elisabet; Valgma, Ingo12th International Symposium "Topical Problems in the Field of Electrical and Power Engineering." Doctoral School of Energy and Geotechnology II : Kuressaare, Estonia, June 11-16, 20122012 / p. 171-172 : ill

Groundwater transport of sulphates in the Estonian oil shale mining areaOtsmaa, MerleInternational Scientific Conference "Environmental and Climate Technologies 2013" : conference proceedings2013 / p. 78-85 : ill

Improvement of current mining technology in Estonian oil shale minesPastarus, Jüri-Rivaldo; Otsmaa, Merle; Šommet, Julija; Pototski, Aleksander; Kuusik, Rein, keemikProceeding of the V-th International Geomechanics Conference : 18-21 June 2012 International House of Scientists "Fr. J. Curie", Varna, Bulgaria2012 / p. 275-279 : ill

Kaevandusvaringute avastamine Eesti põlevkivimaardlas seismiliste sündmuste abilOtsmaa, Merle; Soosalu, Heidi Elisabet; Valgma, Ingo; Pastarus, Jüri-RivaldoKaevandamine ja keskkond2012 / lk. 157-163 : ill

Maardu vee dünaamikaKolats, Margit; Valgma, Ingo; Väizene, Vivika; Reinsalu, Enno; Otsmaa, Merle; Orru, MallKaevandamine ja keskkond2012 / lk. 135-142 : ill https://www.researchgate.net/publication/256443028_Maardu_vee_dunaamika

Mining under Kalina and Selisoo BogsOtsmaa, MerleEnvironment. Technology. Resources : proceedings of the 9th International Scientific and Practical Conference. Volume 12013

Posttehnoloogilised protsessid altkaevandatud alalOtsmaa, Merle; Karu, VeikoXIX aprillikonverentsi "Eesti mere- ja maapõue uuringutest ning arukast kasutamisest" teesid2011 / lk. 44-47 : ill

Potential of underground minewater in Estonian oil shale mining regionValgma, Ingo; Robam, Karin; Karu, Veiko; Kolats, Margit; Väizene, Vivika; Otsmaa, Merle9th International Symposium "Topical problems in the field of electrical and power engineering". Doctoral school of energy and geotechnology. II : Pärnu, Estonia, June 14-19, 20102010 / p. 63-68 : ill

Stability of pillars in drowned minesOtsmaa, Merle13th International Symposium "Topical Problems in the Field of Electrical and Power Engineering." Doctoral School of Energy and Geotechnology II : Pärnu, Estonia, January 14-19, 20132013 / p. 276-277

Tervikute tugevuse muutumine ajasOtsmaa, MerleKaevandamine ja keskkond2012 / lk. 98-103 : ill https://kirjandus.geoloogia.info/reference/33761

Water balance of the Selisoo bog and its changes caused by underground miningOtsmaa, Merle11th International Symposium "Topical Problems in the Field of Electrical and Power Engineering." Doctoral School of Energy and Geotechnology II : Pärnu, Estonia, January 16-21, 20122012 / p. 247-251 : ill., map