@article{GFA_1995__5_4_58214,
     author = {J. Cheeger and T.H. Colding},
     title = {Linear {Growth} {Harmonic} {Functions} on {Complete} {Manifolds} with {Nonnegative} {Ricci} {Curvature.}},
     journal = {Geometric and functional analysis},
     pages = {948--954},
     publisher = {mathdoc},
     volume = {5},
     number = {4},
     year = {1995},
     zbl = {0871.53032},
     url = {http://geodesic.mathdoc.fr/item/GFA_1995__5_4_58214/}
}