@article{AIHPC_1985__2_3_157_0,
     author = {Tolksdorf, Peter},
     title = {On minimal surfaces with free boundaries in given homotopy classes},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {157--165},
     publisher = {Gauthier-Villars},
     volume = {2},
     number = {3},
     year = {1985},
     mrnumber = {797268},
     zbl = {0576.53005},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_1985__2_3_157_0/}
}