TY - RPRT TI - A study of excess H-alpha emission in chromospherically active M dwarf AU - Young, Arthur AU - Skumanich, Andrew AU - Stauffer, John R. AU - Harlan, Eugene AU - Bopp, Bernard W. PY - 1989 UR - https://ntrs.nasa.gov/citations/19890064621 ID - 19890064621 ER -