@misc{10_21136_CMJ_1981_101718,
     title = {Summaries of articles published in this issue},
     journal = {Czechoslovak Mathematical Journal},
     pages = {1},
     year = {1981},
     volume = {31},
     number = {1},
     doi = {10.21136/CMJ.1981.101718},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1981.101718/}
}