George R. Trimble Jr.. The IBM 650 Magnetic Drum Calculator. IEEE Annals of the History of Computing, 8(1):20-29, 1986. [doi]
@article{Trimble86,
title = {The IBM 650 Magnetic Drum Calculator},
author = {George R. Trimble Jr.},
year = {1986},
doi = {10.1109/MAHC.1986.10022},
url = {http://doi.ieeecomputersociety.org/10.1109/MAHC.1986.10022},
researchr = {https://researchr.org/publication/Trimble86},
cites = {0},
citedby = {0},
journal = {IEEE Annals of the History of Computing},
volume = {8},
number = {1},
pages = {20-29},
}