@article{10_4064_ap_44_3_281_284,
     author = {Pawe{\l} Grzegorz Walczak},
     title = {A note on the volume of balls on {Riemannian} manifolds of non-negative curvature},
     journal = {Annales Polonici Mathematici},
     pages = {281--284},
     publisher = {mathdoc},
     volume = {44},
     number = {3},
     year = {1984},
     doi = {10.4064/ap-44-3-281-284},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-44-3-281-284/}
}