@article{SF_1989__38_2_134958,
     author = {Naoki Tanaka},
     title = {Holomorphic {C-semigroups} and holomorphic semigroups.},
     journal = {Semigroup forum},
     pages = {253--262},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1989},
     zbl = {0651.47028},
     url = {http://geodesic.mathdoc.fr/item/SF_1989__38_2_134958/}
}