Researching and Designing Photovoltaic Microsystems
Hilse, D., Kapała, J., Sztymelski, K., Zeltins, N., Ekmanis, J.
Gas Distribution System of Latvia and its Transitional Challenges
Jansons, L., Bode, I., Koposovs, A., Zeltins, N., Lapuke, S.
Energy Aspects of Green Buildings – International Experience
Kauskale, L., Geipele, I., Zeltins, N., Lecis, I.