@article{10_21136_CMJ_1986_102085,
     author = {Obrecht, Enrico},
     title = {Evolution operators for higher order abstract parabolic equations},
     journal = {Czechoslovak Mathematical Journal},
     pages = {210--222},
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {1986},
     doi = {10.21136/CMJ.1986.102085},
     mrnumber = {831309},
     zbl = {0618.35054},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1986.102085/}
}