A. J. Wahl, W. McMahon, N. G. Lesh, W. J. Thompson. SF system: Transistors, diodes and components. Bell Syst. Tech. J., 49(5):683-698, 1970. [doi]
@article{WahlMLT70,
title = {SF system: Transistors, diodes and components},
author = {A. J. Wahl and W. McMahon and N. G. Lesh and W. J. Thompson},
year = {1970},
doi = {10.1002/j.1538-7305.1970.tb01796.x},
url = {https://doi.org/10.1002/j.1538-7305.1970.tb01796.x},
researchr = {https://researchr.org/publication/WahlMLT70},
cites = {0},
citedby = {0},
journal = {Bell Syst. Tech. J.},
volume = {49},
number = {5},
pages = {683-698},
}