@article{ARM_1991__27_3-4_a0,
     author = {Chronowski, Antoni},
     title = {On extensions of homomorphisms and homotopies of commutative $n$-adic groups},
     journal = {Archivum mathematicum},
     pages = {139--148},
     publisher = {mathdoc},
     volume = {27},
     number = {3-4},
     year = {1991},
     mrnumber = {1189208},
     zbl = {0781.20039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1991__27_3-4_a0/}
}