Microwave tomography of solar magnetic fields A. Grebinskij, V. Bogod, G. Gelfreikh, S. Urpo, S. Pohjolainen and K. Shibasaki Astron. Astrophys. Suppl. Ser., 144 1 (2000) 169-180 Published online: 15 May 2000 DOI: 10.1051/aas:2000202