TY - JOUR AU - Bon-Chul Koo AU - William Reach AU - C. Heiles AU - Robert Fesen AU - J. Shull BT - The Astrophysical Journal DA - Jan-11-1990 DO - 10.1086/169400 PY - 1990 EP - 178 T2 - The Astrophysical Journal TI - Detection of an expanding H I shell in the old supernova remnant CTB 80 UR - http://adsabs.harvard.edu/full/1990ApJ...364..178K VL - 364 SN - 0004-637X ER -