@article{JCA_2020_27_1_JCA_2020_27_1_a21,
     author = {M. Ivanov and N. Zlateva},
     title = {On {Characterizations} of {Metric} {Regularity} of {Multi-Valued} {Maps}},
     journal = {Journal of convex analysis},
     pages = {381--388},
     year = {2020},
     volume = {27},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JCA_2020_27_1_JCA_2020_27_1_a21/}
}