TY - RPRT TI - Ionized polycyclic aromatic hydrocarbons and the diffuse interstellar bands AU - Crawford, M. K. AU - Tielens, A. G. G. M. AU - Allamandola, L. J. PY - 1985 UR - https://ntrs.nasa.gov/citations/19850054892 ID - 19850054892 ER -