The polyvalent heat supply system for experimental building of the passive type (area of 300 M2) based on renewable and alternative energy sources - B. I. Basok; I. K. Bozhko; T. H. Bieliaieva; S. M. Honcharuk; O. M. Nedbailo; M. P. Novitska; M. V. Tkachenko; M. A. Khybyna (Science and innovation, 2014)