@article{RMI_2006_2006_1_a8,
     author = {Maniccia, Lidia and Mughetti, Marco},
     title = {Principio {SAK} para una clase de operadores de tipo {Grushin.}},
     journal = {Revista matem\'atica iberoamericana},
     pages = {259-286},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_2006_2006_1_a8/}
}