Po Keung Wong

The accumulation of polycyclic aromatic hydrocarbons in lubricating oil over time--a comparison of supercritical fluid and liquid-liquid extraction methods.

J. Wang, P. Wong, Po Keung Wong, 2001, Environmental pollution.

Characterization of Polycyclic Aromatic Hydrocarbons Created in Lubricating Oils

Jianfang Wang, P. Wong, C. K. Wong, 2000 .