@article{GDZPPN002436701, title = {Collapsing Riemannian Manifolds to the Circle.}, journal = {Mathematische Zeitschrift}, volume = {202}, year = {1989}, pages = {289-298}, zbl = {0661.53029}, url = {http://dml.mathdoc.fr/item/GDZPPN002436701} }
Peng, Xiao-Wie. Collapsing Riemannian Manifolds to the Circle.. Mathematische Zeitschrift, Tome 202 (1989) pp. 289-298. http://gdmltest.u-ga.fr/item/GDZPPN002436701/