Methodology for the improvement of large district heating networksVolkova, Anna; Mashatin, Vladislav; Hlebnikov, Aleksandr; Siirde, AndresScientific journal of Riga Technical University. Environmental and climate technologies2012 / p. 39-45 : ill Methodology for the improvement of large district heating networksVolkova, Anna; Mašatin, Vladislav; Hlebnikov, Aleksandr; Siirde, AndresScientific journal of Riga Technical University. Environmental and climate technologies2013 / p. 39-45 Sustainable development in Estonian miningŠommet, JulijaScientific journal of Riga Technical University. Environmental and climate technologies2013 / p. 34-40 : ill Technologies for decreasing mining lossesValgma, Ingo; Väizene, Vivika; Kolats, Margit; Saarnak, MartinScientific journal of Riga Technical University. Environmental and climate technologies2013 / p. 41-47 : ill