\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2013a.00651}
\itemau{van Dongen, Eef; Vervoort, Jill; van Suijlekom, Walter D.}
\itemti{Ricci flow in 2D.}
\itemso{Nieuw Arch. Wiskd. (5) 12, No. 3, 212-216 (2011).}
\itemcc{G95}
\itemut{topology; geometry; Ricci flow; building bards; Poincar\'e conjecture; 2- spheres; tori; curvatures; distances; metrics}
\itemli{}
\end