@article{10_21136_CPM_1988_108785,
     author = {Pt\'ak, Vlastimil and Vrbov\'a, Pavla},
     title = {An abstract model for compressions},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {252--266},
     year = {1988},
     volume = {113},
     number = {3},
     doi = {10.21136/CPM.1988.108785},
     mrnumber = {960762},
     zbl = {0669.47005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1988.108785/}
}