S. N. Mordyk, V. M. Eremenko, A. N. Bugai, S. A. Sadovoi, A. N. Skripchenko, V. E. Storizhko, A. V. Shelekhov, “Testing a laser-plasma ion source with a system of permanent annular magnets”, Zhurnal Tekhnicheskoi Fiziki, 87:5 (2017), 788–790; Tech. Phys., 62:5 (2017), 807–809
