Solar photosphere : structure, convection and magnetic fields : proceedings of the 138th Symposium of the International Astronomical Union, held in Kiev, U.S.S.R., May 15-20, 1989 / ed. by J.O. Stenflo
Solar photosphere : structure, convection and magnetic fields : proceedings of the 138th Symposium of the International Astronomical Union, held in Kiev, U.S.S.R., May 15-20, 1989