@article{10_4153_CJM_2003_040_x,
     author = {Graczyk, P. and Sawyer, P.},
     title = {Some {Convexity} {Results} for the {Cartan} {Decomposition}},
     journal = {Canadian journal of mathematics},
     pages = {1000--1018},
     year = {2003},
     volume = {55},
     number = {5},
     doi = {10.4153/CJM-2003-040-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2003-040-x/}
}