@article{BASS_2022_47_1_a1,
     author = {Dragan S. Djordjevi\'c and Dragan S. Raki\'c},
     title = {Infinite {Topological} {Direct} {Sum} of {Subspaces}},
     journal = {Bulletin de l'Acad\'emie serbe des sciences. Classe des sciences math\'ematiques et naturelles},
     pages = {17 - 28},
     publisher = {mathdoc},
     volume = {47},
     number = {1},
     year = {2022},
     url = {http://geodesic.mathdoc.fr/item/BASS_2022_47_1_a1/}
}