${session.getAttribute("locale")} 5 The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies 1000kms-1 clusters of 3.6 × 10-6 h3 Mpc-3. This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.]]> Sat 13 Dec 2014 13:27:46 EST ]]>