@article{10_4064_fm_89_3_191_197,
     author = {B. W\k{e}glorz},
     title = {Substructures of reduced powers},
     journal = {Fundamenta Mathematicae},
     pages = {191--197},
     publisher = {mathdoc},
     volume = {89},
     number = {3},
     year = {1975},
     doi = {10.4064/fm-89-3-191-197},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-89-3-191-197/}
}