@article{10_4064_sm187_1_1,
     author = {Yuan-Chuan Li and Ryotaro Sato and Sen-Yen Shaw},
     title = {Boundedness and growth orders of means of discrete and
 continuous semigroups of operators},
     journal = {Studia Mathematica},
     pages = {1--35},
     publisher = {mathdoc},
     volume = {187},
     number = {1},
     year = {2008},
     doi = {10.4064/sm187-1-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm187-1-1/}
}