DEPENDENCE OF LAUE REFLECTION OF MÖSSBAUER RADIATION OF MAGNETIC FIELD DIRECTION IN 57FeBO3 SINGLE CRYSTAL V.G. Labushkin, V.A. Sarkissyan and E.V. Smirnov J. Phys. Colloques, 41 C1 (1980) C1-471-C1-472 DOI: 10.1051/jphyscol:19801185