Sivilevičius, H., A. Daniūnas, E. K. Zavadskas, Z. Turskis, and S. Sušinskas. “Experimental Study on Technological Indicators of Pile-Columns at a Construction Site”. Journal of Civil Engineering and Management, vol. 18, no. 4, Sept. 2012, pp. 512-8, doi:10.3846/13923730.2012.709958.