TY - JOUR AU - Randall Shirts AU - William Reinhardt BT - The Journal of Chemical Physics DA - Jan-01-1982 DO - 10.1063/1.443697 PY - 1982 EP - 5204 T2 - The Journal of Chemical Physics TI - Approximate constants of motion for classically chaotic vibrational dynamics: Vague tori, semiclassical quantization, and classical intramolecular energy flow VL - 77 SN - 00219606 ER -