@article{10_4064_cm_7_1_31_32,
     author = {Andrzej Bia{\l}ynicki-Birula and J. Browkin and Andrzej Schinzel},
     title = {On the representation of fields as finite unions of subfields},
     journal = {Colloquium Mathematicum},
     pages = {31--32},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1959},
     doi = {10.4064/cm-7-1-31-32},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-7-1-31-32/}
}