@article{10_21136_CPM_1985_118233,
     author = {Spakowski, Andrzej},
     title = {On {De} {Blasi's} differentiation theory for multifunctions},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {270--273},
     publisher = {mathdoc},
     volume = {110},
     number = {3},
     year = {1985},
     doi = {10.21136/CPM.1985.118233},
     mrnumber = {808077},
     zbl = {0583.46036},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1985.118233/}
}