Analysis of passive architectural roof cooling potential to decrease the cooling demand for Northern European Office buildings based on energy modelling and laboratory testsVoll, Hendrik; Seinre, Erkki; Sööt, Peet-MatiWSEAS transactions on environment and development2011 / p. 136-145 : ill http://www.wseas.us/e-library/transactions/environment/2011/53-080.pdf

Utilization of oil shale retort gasSööt, Peet-Mati; Voll, Hendrik; Kõiv, Teet-AndrusOil shale2012 / p. 248-267 : ill