@article{TIMM_2009_15_3_a7,
     author = {I. I. Eremin},
     title = {Contraction mapping},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {106--115},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2009_15_3_a7/}
}