title: optics : ordering points to identify the clustering structure m ankerst , m breunig , h kriegel , j sander. authors: nan. venue: sigmod conference. year: 1999.0
title: m. , kriegel , h.-p. , et al. , 1999 , â ?? optics : ordering points to identify the clustering structureâ ?? m ankerst , m breunig proceedings of the acm sigmod conference on management of. authors: nan. venue: nan. year: nan