@article{10_21136_CMJ_1983_101873,
     author = {Butzmann, Heinz-Peter},
     title = {Pontryagin duality for convergence groups of unimodular continuous functions},
     journal = {Czechoslovak Mathematical Journal},
     pages = {212--220},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1983},
     doi = {10.21136/CMJ.1983.101873},
     mrnumber = {699022},
     zbl = {0528.54005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1983.101873/}
}