@misc{indiciae44944534a646, title = {Pionic and muonic X rays in liquid helium.}, author = {Buckle, D. C. and Kane, J. R. and Siegel, R. T. and Wetmore, R. J.}, year = {1967}, url = {https://ntrs.nasa.gov/citations/19670064006}, note = {Source identifier: 19670064006} }