@article{RMI_1988_1988_1_a19,
     author = {Baernstein II, Albert},
     title = {Un problema extremal para ciertas funciones subarm\'onicas en el plano.},
     journal = {Revista matem\'atica iberoamericana},
     pages = {199-218},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_1988_1988_1_a19/}
}