@article{MZ_1977__156_172587,
     author = {Martin Kern and Rainer Nagel and G. Palm},
     title = {Dilations of {Positive} {Operators:} {Construction} and {Ergodic} {Theory.}},
     journal = {Mathematische Zeitschrift},
     pages = {265--278},
     year = {1977},
     volume = {156},
     zbl = {0356.47004},
     url = {http://geodesic.mathdoc.fr/item/MZ_1977__156_172587/}
}