A life cycle environmental impact assessment of oil shale produced and consumed in EstoniaGavrilova, Olga; Vilu, Raivo; Vallner, LeoResources, conservation and recycling2010 / p. 232-245

Optimisation of the economic, environmental and administrative efficiency of the municipal waste management model in rural areasPõldnurk, JanaResources, conservation and recycling2015 / p. 55-65 : ill