; TeX output 1997.03.05:1635so%DtGGcmr17The7tGGcmss17xrq:pacqkage!", cmsy10XQ cmr12DarvidCarlisle2K cmsy8ypScarlisle@cs.man.ac.uk&37 1994/05/28%XK`y cmr10ThisUUpackqageimplementsasystemforeXternalReferences. XIfonedoGcumentneedstorefertosectionsofanother,say