@article{10_4064_sm_129_2_137_156,
     author = {V. Keyantuo and  },
     title = {On analytic semigroups and cosine functions in {Banach} spaces},
     journal = {Studia Mathematica},
     pages = {137--156},
     publisher = {mathdoc},
     volume = {129},
     number = {2},
     year = {1998},
     doi = {10.4064/sm-129-2-137-156},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-129-2-137-156/}
}