@article{RM_2000_55_3_a2,
     author = {A. D. Ioffe},
     title = {Metric regularity and subdifferential calculus},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {501--558},
     publisher = {mathdoc},
     volume = {55},
     number = {3},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2000_55_3_a2/}
}