A. P. Chernyaev, V. A. Dravin, A. Yu. Golovanov, A. L. Karuzskii, A. E. Krapivka, A. N. Lykov, V. N. Murzin, A. V. Perestoronin, A. M. Tskhovrebov, N. A. Volchkov, "Principal problems of quality improvement for high-speed planar transmission lines issued from studies of high-Q microstrip resonators," Proc. SPIE 7521, International Conference on Micro- and Nano-Electronics 2009, 752119 (26 February 2010);