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000001370 001__ 1370 000001370 005__ 20160222141727.0 000001370 037__ $$aSIDCimport-1654 000001370 100__ $$aClette, F. 000001370 245__ $$aThe International Sunspot Index Ri: a perspective on the last 50 years 000001370 260__ $$c2011 000001370 269__ $$c2011-09-xx 000001370 594__ $$aSTCE 000001370 773__ $$t1st Sunspot Number Workshop, Sacramento Peak Observatory, USA, 19/9/2011 000001370 906__ $$aInvited 000001370 980__ $$aCTALKINVI