TY  - JOUR <br/>
             A1  - Defrees, D. J. <br/>A1  - McLean, A. D.<br/>T1  - A priori predictions of the rotational constants for HC13N, HC15N, and C5O<br/>JF  -  Chemical Physics Letters<br/>Y1  - 1989<br/>VL  - 158<br/>SP  - 541<br/>EP  - 544<br/>ER  -