Ginzburg V.L. ,     Syrovatzkii S.I. On the origin of cosmic rays. 10-th Intern. conf. Cosmic Ray. Proc. Calgary. Canada. 1967. Pt.A , с. P.48-81   Ginzburg V.L. ,     Ozernoy L.M. ,     Syrovatzkii S.I. On the mechanism of radiation of the galaxy 3C 273B. II-20403 Quasi-stellar sources and gravitational collapse. Including the proceedings of the First Texas symposium on relativistic astrophysics. , с. P.277-281   Ginzburg V.L. ,     Syrovatzkii S.I. On the spectrum relativistic electrons accelerated in cosmic ray sources. Astrophys. and Space Sci. , Vol.1,N4 , с. P.442-459 , 01.1968