Pls where can i find these journal on the internet,my lectura gave me work on it-THE USE OF GROUP THEORY TO DETERMINE MOLECULAR SYMMETRY FROM INFRARED SPECTRAL.AUTHOR-C.H THOMAS,JOURNAL OF CHEMICAL EDU.PUB. In 1974 vol.51 page 91. and BACK OF THE ENVELOPE MOLECULER ORBITAL CALCULATIONS USING BOND ORBITALS AND GROUP THEORY.AUTHOR R.B DAVIDSON,JOURNAL OF CHEMICAL EDU.PUB. In 1947,vol.54 page 531.