27. Observational Evidence for the Existence of Dense Clouds of Interstellar Molecular Hydrogen, M. Werner, M. Harwit, Ap. J., 154, 881, (1968).

27. Observational Evidence for the Existence of Dense Clouds of Interstellar Molecular Hydrogen, M. Werner, M. Harwit, Ap. J., 154, 881, (1968)., Box: 21, Folder: 28. Martin Harwit papers, 14-7-2402. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/174378 Accessed January 24, 2026.