TY - RPRT TI - Ion energetics measurements : part I. 1971-1973 AU - Rosenstock, H M AU - Sims, D AU - Schroyer, S S AU - Webb, W J PY - 1980 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS NSRDS 66p1 DO - 10.6028/NBS.NSRDS.66p1 ER -