@article{AA_2006_18_1_a1,
     author = {R. W. Barnard and C. Richardson and A. Yu. Solynin},
     title = {A minimal area problem for nonvanishing functions},
     journal = {Algebra i analiz},
     pages = {34--54},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2006_18_1_a1/}
}