@article{AFM_1992_17_2_a9,
     author = {S.L. Krushkal'},
     title = {Quasiconformal extremals of non-regular functionals},
     journal = {Annales Fennici Mathematici},
     pages = {295--306},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1992},
     doi = {10.5186/aasfm.1992.1728},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1992.1728/}
}