TY - RPRT TI - The diffuse interstellar feature at 4430 A and interstellar extinction in the far-ultraviolet AU - Witt, A. N. AU - Bohlin, R. C. AU - Stecher, T. P. PY - 1983 UR - https://ntrs.nasa.gov/citations/19830045538 ID - 19830045538 ER -