1. M�ssbauer spectra of ferrite catalysts used in oxidative dehydrogenation
2. a) Za. Bonchev, A. Jordanov and A. Minkova, Proc. Conf. Applications Mössbauer Effect (Tihany, 1969), Akademai Kiado, Budapest, 1971, p. 333.
3. An analysis of backscatter Mössbauer spectra obtained with internal conversion electrons
4. a) V.I. Lisichenko, S.L. Korduk, O.L. Orlov and A.N. Smoilovskii, Proc. Conf. Applications Mössbauer Effect (Tihany, 1969), Akademai Kiado, Budapest, 1971, p. 339.