Xu, H., & Gu, J. (2010). An Optimal Differentiable Sphere Theorem for Complete Manifolds.
Citazione stile Chigago Style (17a edizione)Xu, Hong-Wei, e Juan-Ru Gu. An Optimal Differentiable Sphere Theorem for Complete Manifolds. 2010.
Citatione MLA (9a ed.)Xu, Hong-Wei, e Juan-Ru Gu. An Optimal Differentiable Sphere Theorem for Complete Manifolds. 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.