Home IMPRS PhD Programme Research in Solar System Science Assigned PhD projects PhD in planetary plasma environment Publications of T. Penuela All genres Journal Article (1) Journal Article (1) 1. Journal Article Dasi-Espuig, M.; Solanki, S. K.; Krivova, N.; Cameron, R.; Penuela, T.: Sunspot Group Tilt Angles and the Strength of the Solar Cycle. Astronomy and Astrophysics 556, C3 (2013) MPG.PuRe DOI