Victor Herrero Radio Astronomy Blog

Sunday, December 18, 2011

Solar Cycle Progression

Victor Herrero at Sunday, December 18, 2011

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Victor Herrero: Tucson, Arizona, United States; Retired Astronomer and Engineer -- Dr. Eng. Victor Herrero-Arrieta Ph.D. M.S. Ing.Ind. - hubbleed at gmail dot com

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