@article{10_4064_cm_17_2_269_276,
     author = {B. W\k{e}glorz},
     title = {Some preservation theorems},
     journal = {Colloquium Mathematicum},
     pages = {269--276},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1967},
     doi = {10.4064/cm-17-2-269-276},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-17-2-269-276/}
}