Gaidučis, S., R. Mačiulaitis, and A. Kaminskas. “Eco‐balance Features and Significance of Hemihydrate Phosphogypsum Reprocessing into Gypsum Binding Materials”. Journal of Civil Engineering and Management, vol. 15, no. 2, June 2009, pp. 205-13, doi:10.3846/1392-3730.2009.15.205-213.