@article{RMI_1991_1991_1_a7,
     author = {Lu, Guozhen},
     title = {Lemas de cubrimiento y estimaciones de la norma {BMO} para autofunciones en superficies riemannianas.},
     journal = {Revista matem\'atica iberoamericana},
     pages = {221-246},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {1991},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_1991_1991_1_a7/}
}