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The Solar Rotation in the 1930s from the Sunspot and Flocculi Catalogs of the Ebro Observatory
(Solar Phys (2016) 291:2269–2279, 2016-09-06)The tables of sunspot and flocculi heliographic positions included in the catalogs published by the Ebro Observatory in the 1930s have recently been recovered and converted into digital format by using ...