You may also wish to search for items by Jen, J. and Jen.
Only one matching reference was found.
Li, H.-P.; Li, G.-C.; Jen, J.-F., Fast multi-residue screening for 84 pesticides in tea by gas chromatography with dual-tower auto sampler, dual-column and dual detectors, J. Chin. Chem. Soc. (Peking), 2004, 51, 531-542. [all data]