Analysis of earthquakes available influence on "Estonia" mine underground construction stabilityNikitin, Oleg; Sabanov, Sergei; Pastarus, Jüri-RivaldoEnvironment. Technology. Resources : proceedings of the 6th International Scientific and Practical Conference : [Rezekne, Latvia], June 20-22, 20072007 / p. 78-84 : ill http://journals.rta.lv/index.php/ETR/article/view/1734

The surface miner sustainable technology introduction for oil-shale mining in EstoniaNikitin, Oleg; Väli, Erik; Sabanov, Sergei; Pastarus, Jüri-RivaldoEnvironment. Technology. Resources : proceedings of the 6th International Scientific and Practical Conference : [Rezekne, Latvia], June 20-22, 20072007 / p. 55-61 : ill