@article{CMH_1996__71_2_140393,
     author = {Victor Bangert and Urs Lang},
     title = {Trapping quasiminimizing submanifolds in spaces of negative curvature.},
     journal = {Commentarii mathematici Helvetici},
     pages = {122--143},
     publisher = {mathdoc},
     volume = {71},
     number = {2},
     year = {1996},
     zbl = {0856.53047},
     url = {http://geodesic.mathdoc.fr/item/CMH_1996__71_2_140393/}
}