Items where authors include "Köppen, J."

Proceedings Paper

Miszalski, B., Crowther, P.A., de Marco, O. et al. (4 more authors) (2013) IC4663: the first unambiguous [WN] Wolf-Rayet central star of a planetary nebula. In: Astronomical Society of the Pacific Conference Series. 18th European White Dwarf Workshop, 13-17 Aug 2012, Cracow, Poland. Astronomical Society of the Pacific , pp. 281-286.