TY - JOUR AU - T. Kvale AU - D. Seely AU - D. Blankenship AU - E. Redd AU - T. Gay AU - M. Kimura AU - E. Rille AU - J. Peacher AU - J. Park BT - Physical Review A DA - Jan-09-1985 DO - 10.1103/PhysRevA.32.1369 PY - 1985 SP - 1369 EP - 1378 T2 - Physical Review A TI - Angular differential cross sections for the excitation of 11S helium to the 21S and 21P states by 25- to 100-keV-proton impact UR - http://link.aps.org/doi/10.1103/PhysRevA.32.1369 VL - 32 SN - 0556-2791 ER -