@article{10_4064_cm105_1_2,
     author = {A. Eduardo Gatto and Carlos Segovia},
     title = {Product rule and chain rule estimates for
 the {Haj/lasz} gradient on doubling metric
 measure spaces},
     journal = {Colloquium Mathematicum},
     pages = {19--24},
     publisher = {mathdoc},
     volume = {105},
     number = {1},
     year = {2006},
     doi = {10.4064/cm105-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm105-1-2/}
}