65. The Far-Infrared and Submillimeter Background, J. R. Houck, B. T. Soifer, Martin Harwit and Judith L. Pipher, Ap. J. Lett, 178, L29, (1972).

65. The Far-Infrared and Submillimeter Background, J. R. Houck, B. T. Soifer, Martin Harwit and Judith L. Pipher, Ap. J. Lett, 178, L29, (1972)., Box: 21. Martin Harwit papers, 14-7-2402. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/174416 Accessed January 25, 2026.