@article{CMUC_1984_25_1_a12,
     author = {Bojadziev, H. N.},
     title = {Characterization of the generators of $C_0$ semigroups which leave a convex set invariant},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {159--170},
     year = {1984},
     volume = {25},
     number = {1},
     mrnumber = {749124},
     zbl = {0555.47027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1984_25_1_a12/}
}