@article{10_21136_MB_1992_125908,
     author = {\v{Z}\'a\v{c}ik, Tibor},
     title = {On a shadowing lemma in metric spaces},
     journal = {Mathematica Bohemica},
     pages = {137--149},
     publisher = {mathdoc},
     volume = {117},
     number = {2},
     year = {1992},
     doi = {10.21136/MB.1992.125908},
     mrnumber = {1165890},
     zbl = {0808.54028},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.1992.125908/}
}