@article{10_4153_CMB_1991_066_8,
     author = {Verona, Andrei and Verona, Maria Elena},
     title = {A {Note} on {Minimal} {Usco} {Maps}},
     journal = {Canadian mathematical bulletin},
     pages = {412--416},
     year = {1991},
     volume = {34},
     number = {3},
     doi = {10.4153/CMB-1991-066-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-066-8/}
}