@misc{indiciae343247638746, title = {Experimental study of colloid annular thrusters}, author = {Daley, H. L. and Mahoney, J. F. and Perel, J. and Sherman, A. and Yahiku, A. Y.}, year = {1970}, url = {https://ntrs.nasa.gov/citations/19700064115}, note = {Source identifier: 19700064115} }