@article{ASNSP_1983_4_10_4_579_0,
     author = {Mader, Adolf},
     title = {The $\oplus _c$-topology is not completable},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {579--586},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 10},
     number = {4},
     year = {1983},
     zbl = {0537.20029},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1983_4_10_4_579_0/}
}