@misc{indiciae848e479bf4b6, title = {Low-energy proton increases associated with interplanetary shock waves.}, author = {Palmeira, R. A. R. and Allum, F. R. and Rao, U. R.}, year = {1971}, url = {https://ntrs.nasa.gov/citations/19720046058}, note = {Source identifier: 19720046058} }