@article{SF_1990__41_2_135038,
     author = {R. de Laubenfels},
     title = {Integrated semigroups, {C-semigroups,} and the abstract {Cauchy} problem.},
     journal = {Semigroup forum},
     pages = {83--96},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SF_1990__41_2_135038/}
}