@Article{ endmultop10, author = { Enders, Joerg and Müller, Reto and Peter M. Topping, }, title = { On Type I Singularities in Ricci flow }, journal = { Commun. Anal. Geom. }, year = { 2011 }, volume = { 19 }, number = { 5 }, pages = { 905-922 }, URL = { http://cvgmt.sns.it/paper/111/ }, note = { cvgmt preprint} }