TY - CPAPER AU - Vlasta Ondrejka Harbulakova TI - DETERIORATION OF CONCRETE COMPOSITES PLACED IN SEWER PIPELINES EVALUATED BY CALCIUM AND SILICON IONS CHANGES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION PY - 2013 DO - 10.5593/sgem2013/be5.v1/s20.036 PB - Stef92 Technology ER -