Solar Physics · 1998 · 32 citations · 1 references
Life SciencesCell BiologyCell CycleStochastic ProcessesBifurcation TheoryCell-cycle PhasesPhase TransitionsLocal Energy MinimaMinimum Energy PathsMinimum Energy Pathways
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Secularly smoothed data on the minima and maxima of sunspot frequency
W. Gleißberg · Solar Physics · 1967 · 51 citations