Authors : magdy m el rayes-ehab a el danaf-mahmoud s soliman

Authors : koji muteki-ken yamamoto-george l reid-mahesh krishnan

Authors : a s el hagrasy-p cruise-i jones-j d litster

Authors : beatriz ungerbimczok-thomas kosian-volker kottke-christian hertel-johannes rauschnabel

Authors : fernando j muzzio-francis s romanski-eric jayjock-maria silvina tomassone

Authors : gulam mustafa-sanjula baboota-javed ali-alka ahuja