@article{MZM_1992_52_6_a14,
     author = {L. Z. Fishman},
     title = {Stability conditions for a fixed point of point maps in the critical case of a pair of complex conjugate roots on the unit circle},
     journal = {Matemati\v{c}eskie zametki},
     pages = {131--139},
     publisher = {mathdoc},
     volume = {52},
     number = {6},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_52_6_a14/}
}