@misc{indiciae87327cf35367, title = {Modular thrust subsystem approaches to solar electric propulsion module design}, author = {Cake, J. E. and Sharp, G. R. and Oglebay, J. C. and Shaker, F. J. and Zavesky, R. J.}, year = {1976}, url = {https://ntrs.nasa.gov/citations/19770003209}, note = {Source identifier: 19770003209} }