Ивченко, Н. Б., А. Ю. Едамов, and А. Б. Романовская. “Mathematical Model for Determining the Heads of Committees of the Social Organization”. Eastern-European Journal of Enterprise Technologies, vol. 3, no. 4(51), Jan. 2012, pp. 28-31, doi:10.15587/1729-4061.2011.1571.