Wiehr, E., de Boer, C. R., Stellmacher, G., & Sütterlin, P. (1997). Emission lines
in a quiescent prominence observed with the SUMER, VTT, and Gregory telescopes. In, Schmieder, B., d. T., Iniesta, J., C.,
Vázquez, M., &, Astron (Eds.), First Advances in Solar
Physics Euroconference: Advances in the Physics of Sunspots (pp. 294-297). San Francisco: Soc. Pacific.