He also co-discovered the periodic comet 140P/Bowell-Skiff and the non-periodic comet C/1980 E1.
Med njimi so pomembnejši trojanski asteroid 2357 Fereklej (Phereclos), 2759 Idomenej (Idomeneus), 2797 Teucer, 2920 Automedon, 3564 Talttibij (Talthybius), 4057 Demofon (Demophon) in 44899 1988 AK.