@article{RM_1988_43_3_a13,
     author = {A. Yu. Lemin},
     title = {Inverse images of metric spaces under non-expanding open mappings},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {214--215},
     publisher = {mathdoc},
     volume = {43},
     number = {3},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1988_43_3_a13/}
}