@article{ZNSL_1974_40_a6,
     author = {V. Ya. Kreinovich},
     title = {A~constructivization of the notions of $\varepsilon$-entropy and $\varepsilon$-capacity},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {38--44},
     year = {1974},
     volume = {40},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1974_40_a6/}
}