Radiatsionnye yavleniya v ferritakh / U. A. Ulmanis. - Moskva : Energoatomizdat, 1984. - 160 s.
Radiatsionnye defekty i iony metallov gruppy zheleza v oksidakh / N. A. Mironova, U. A. Ulmanis; AN LatvSSR, In-t fiziki. - Riga : Zinatne, 1988. - 202 s.; ISBN 5-7966-0030-3
N. Mironova, V. Skvortsova, A. Smirnov, U. Ulmanis, “Effect of $\mathrm{Mg}$–$\mathrm{Al}$ spinel stoichiometry on the possibility of hole localization”, Fizika Tverdogo Tela, 34:9 (1992), 2789–2796
1984
2.
Yu. N. Dmitriev, V. M. Koshkin, R. A. Tarnopol'skaya, U. A. Ulmanis, “Infrared diagnostics of radiation and thermal defects in crystals”, Fizika Tverdogo Tela, 26:8 (1984), 2497–2499
3.
L. A. Chebotkevich, T. V. Velichko, Yu. D. Vorob'ev, U. A. Ulmanis, “Coercitivity of films irradiated with high-energy electrons”, Fizika Tverdogo Tela, 26:5 (1984), 1535–1537
Organisations
Latvian State University named after P. Stuchki
Institute of Physics, Academy of Sciences of the Latvian SSR, Salaspils