Title: III nat︠s︡ionalna nauchno-tekhnicheska konferent︠s︡ii︠a︡ s mezhdunarodno uchastie na tema Izolat︠s︡ionni raboti v stroitelstvoto, 25-27 oktomvri 1979 godina, Varna
Subjects: Building materials, Insulation (Heat), Protective coatings, Corrosion, Congresses, Waterproofing