TY - RPRT TI - Polycyclic aromatic hydrocarbon structure index AU - Sander, Lane C AU - Sander, Lane C AU - Wise, Stephen A PY - 1997 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 922 DO - 10.6028/NIST.SP.922 ER -