Ognyan Petrov
- Mössbauer, DTA and XRD study of Portland cement blended with fly ash and silica fume. Dans: Construction and Building Materials, v. 29 (avril 2012). (2012):
- Long term study of hardened cement pastes containing silica fume and fly ash. Dans: Construction and Building Materials, v. 60 (juin 2014). (2014):