TY - JOUR AU - R. Long AU - D. Cox AU - S. Smith BT - Journal of Research of the National Bureau of Standards N1 - JILA Pub. 415 PY - 1968 SE - 521 SP - 521 EP - 535 T2 - Journal of Research of the National Bureau of Standards TI - Electron Impact Excitation of Hydrogen Lyman-Alpha Radiation VL - 72 ER -