A comparative study of the vibrational spectra of OCS and HCP using the Lie algebraic methodN. K. Sarkar, J. Choudhury, S. R. Karumuri and R. BhattacharjeeEur. Phys. J. D, 53 2 (2009) 163-171DOI: https://doi.org/10.1140/epjd/e2009-00094-8