@article{10_4064_ap83_1_1,
     author = {Andrzej Smajdor},
     title = {Hukuhara's differentiable iteration semigroups of
 linear set-valued functions},
     journal = {Annales Polonici Mathematici},
     pages = {1--10},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {2004},
     doi = {10.4064/ap83-1-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap83-1-1/}
}