@article{10_4171_ggd_385,
     author = {Alon Pinto},
     title = {A splitting theorem for spaces of {Busemann} non-positive curvature},
     journal = {Groups, geometry, and dynamics},
     pages = {1--27},
     year = {2017},
     volume = {11},
     number = {1},
     doi = {10.4171/ggd/385},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/385/}
}