@article{10_4153_CMB_2016_033_3,
     author = {Ba\v{c}\'ak, Miroslav and Kovalev, Leonid V.},
     title = {Lipschitz {Retractions} in {Hadamard} {Spaces} via {Gradient} {Flow} {Semigroups}},
     journal = {Canadian mathematical bulletin},
     pages = {673--681},
     year = {2016},
     volume = {59},
     number = {4},
     doi = {10.4153/CMB-2016-033-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2016-033-3/}
}