TY - JOUR AU - Edward Fitzpatrick AU - D. Massa BT - The Astrophysical Journal DA - Jan-08-1986 DO - 10.1086/164415 PY - 1986 EP - 286 T2 - The Astrophysical Journal TI - An analysis of the shapes of ultraviolet extinction curves. I - The 2175 A bump UR - http://articles.adsabs.harvard.edu/full/1986ApJ...307..286F VL - 307 SN - 0004-637X ER -