TY - JOUR AU - M Krishnamurthy AU - J de Gouw AU - L Ding AU - V Bierbaum AU - S Leone C2 - Journal of Chemical Physics DA - 1997-01-01 00:01:00 LA - en M1 - 106 PB - Journal of Chemical Physics PY - 1997 TI - Mobilities and Formation Kinetics of NH4+(NH3)n Cluster Ions (n=0-3) in helium and helium/ammonia mixtures ER -