2007 · N. Zeltins, Karkis Mikelsons, et al. · Developing & Delivering Affordable Energy in the 21st Century,27th USAEE/IAEE North American Conference,Sept 16-19, 2007 · 1
2013 · N. Zeltins, Viktors Zebergs Tatjana Odineca · Energy Economics of Phasing out Carbon and Uranium,13th IAEE European Conference,August 18-21, 2013