@article{MAN_1974__207_162545,
     author = {Shing-Tung Yau},
     title = {Non-existence of {Continuous} {Convex} {Functions} on {Certain} {Riemannian} {Manifolds.}},
     journal = {Mathematische Annalen},
     pages = {269--270},
     publisher = {mathdoc},
     volume = {207},
     year = {1974},
     zbl = {0261.53036},
     url = {http://geodesic.mathdoc.fr/item/MAN_1974__207_162545/}
}