@article{CMUC_1998_39_1_a12,
     author = {L\'avi\v{c}ka, Roman},
     title = {The {L\'evy} laplacian and differential operators of 2-nd order in {Hilbert} spaces},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {115--135},
     year = {1998},
     volume = {39},
     number = {1},
     mrnumber = {1622994},
     zbl = {0945.47037},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1998_39_1_a12/}
}