@article{GFA_1996__6_1_58250,
     author = {N. Nadirashvili},
     title = {Berger's {Isoperimetric} {Problem} and {Minimal} {Immersions} of {Surfaces.}},
     journal = {Geometric and functional analysis},
     pages = {877--898},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1996},
     zbl = {0868.58079},
     url = {http://geodesic.mathdoc.fr/item/GFA_1996__6_1_58250/}
}