TY - JOUR A1 - Salvador, R. J. T1 - A mathematical model of the sunspot cycle for the past 1000 yr JO - Pattern Recogn. Phys. J1 - PRP VL - 1 IS - 1 SP - 117 EP - 122 Y1 - 2013/11/15 PB - Copernicus Publications SN - 2195-9250 UR - http://www.pattern-recogn-phys.net/1/117/2013/ L1 - http://www.pattern-recogn-phys.net/1/117/2013/prp-1-117-2013.pdf DO - 10.5194/prp-1-117-2013 ER -