Суворов, Н.П., Суворова, И.Г. and Кравченко, О.В. 2012. Formation of optimal systems of energy transformations on the basis of using the principles of harmony, integrity. Eastern-European Journal of Enterprise Technologies. 3, 10(51) (Jan. 2012), 44–46. DOI:https://doi.org/10.15587/1729-4061.2011.1703.