@misc{indiciae42d6fb7f7b4c, title = {The photoelectron-spectrometer experiment on Atmosphere Explorer.}, author = {Doering, J. P. and Bostrom, C. O. and Armstrong, J. C.}, year = {1973}, url = {https://ntrs.nasa.gov/citations/19730043839}, note = {Source identifier: 19730043839} }