A general algebraic model for vibrational molecular spectroscopy
  We present a symmetry-adapted version of the vibron model and discuss an application to D_{3h} triatomic molecules: H_3^+, Be_3 and Na_3^+. 
A. Frank, R. Lemus, F. Perez-Bernal, R. Bijker and J.M. Arias   (ICN/UNAM, Mexico and Sevilla, Spain)