TY JOUR TI Global distribution of GPS losses of phase lock and total electron content slips during the 2005 May 15 and the 2003 November 20 magnetic storms KW magnetic storm KW GPS KW loss of phase lock KW TEC slips KW auroral oval JO Solnechno-Zemnaya Fizika AU Yasyukevich, Y.V. AU Astafyeva, E.I. AU Zhivetiev, I.V. AU Maksikov, A.P. PY 2015 IS 1 PB INFRA-M Academic Publishing LLC.