1. Photon-counting magnetograph for measurements of circular polarization in narrow spectral ranges Creator: Kuvshinov, V. M. and Granytsky, L. V. Format: bez média and svazek Type: model:article and TEXT Subject: astrophysics, magnetographs, and circular polarization Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public