Authors: Khalifa, ME Akl, MA Ghazy, SES

Citation: Me. Khalifa et al., Selective flotation-spectrophotometric determination of trace copper(II) in natural waters, human blood and drug samples using phenanthraquinone monophenylthiosemicarbazone, CHEM PHARM, 49(6), 2001, pp. 664-668

Authors: El-Asmy, AA Khalifa, ME Askar, EI

Citation: Aa. El-asmy et al., Chemical and electrochemical synthesis of transition metal complexes of butylmalonic acid dihydrazide and its salicyloyl hydrazone, SYN REAC IN, 30(4), 2000, pp. 663-681

Authors: El-Asmy, AA Khalifa, ME Rakha, TH Hassanian, MM Abdallah, AM

Citation: Aa. El-asmy et al., Mono and trinuclear complexes of alpha-oximinoacetoacetylpyridine-4-phenylthiosemicarbazone, CHEM PHARM, 48(1), 2000, pp. 41-44

Authors: El-Askalany, AH Khalifa, ME Nawar, N El-Defrawy, MM

Citation: Ah. El-askalany et al., Polarographic determination of V(IV)/V(V) ratio in vanadate glasses, CHEM ANAL, 45(1), 2000, pp. 117-124

Authors: Kabil, MA Akl, MA Khalifa, ME

Citation: Ma. Kabil et al., Selective flotation-spectrophotometric procedure for the trace analysis ofpalladium(II) in different matrices, ANAL SCI, 15(5), 1999, pp. 433-438

Authors: El-Sheikh, MG Khalifa, ME Gavdzinski, V

Citation: Mg. El-sheikh et al., The unbounded normal stress of a contact problem for a cylinder, MATH COMP S, 49(1-2), 1999, pp. 119-128