@article{10_4064_sm145_2_3,
     author = {Yu. Lyubich},
     title = {The single-point spectrum operators
satisfying {Ritt's} resolvent condition},
     journal = {Studia Mathematica},
     pages = {135--142},
     publisher = {mathdoc},
     volume = {145},
     number = {2},
     year = {2001},
     doi = {10.4064/sm145-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm145-2-3/}
}