@misc{indiciae6dda589a6f34, title = {The hydrogen coverage of interstellar PAHs}, author = {Tielens, A. G. G. M. and Allamandola, L. J. and Barker, J. R. and Cohen, M.}, year = {1987}, url = {https://ntrs.nasa.gov/citations/19870061246}, note = {Source identifier: 19870061246} }