Ott W. Spectroscopic determination of species and divergence of hydrogen beams in the W7AS neutral beam injectors / W.Ott,F.-P.Penningsfeld, 1993. - 24 p. - Текст : непосредственный.
Ott W. Beam divergence and ion current in multiaperture ion surces / W.Ott,F.-P.Penningsfeld, 1992. - 10 p. - Текст : непосредственный.