@misc{indiciae6c6b11473c7f, title = {Multimegawatt thermionic reactor systems for space applications}, author = {Hill, P. R. and Sawyer, C. D. and Wilkins, D. R.}, year = {1968}, url = {https://ntrs.nasa.gov/citations/19680025265}, note = {Source identifier: 19680025265} }