Bound rovibronic levels of the HeN+2 (A2Π) complex. Spectrochim. Acta - Part A Mol. Biomol. Spectrosc., (53)8:1133–1138, 1997. [PUMA: werner theoretische stuttgart functions,Rovibronic chemie energy Electron spin from:alexanderdenzel theochem couplings,Potential levels] URL