@article{04057631,
title = {Invariants of number fields related to central embedding problems.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {13},
year = {1990},
pages = {199-200},
doi = {10.1155/S0161171290000291},
zbl = {0648.12008},
language = {en},
url = {http://dml.mathdoc.fr/item/04057631}
}
Opolka, H. Invariants of number fields related to central embedding problems.. International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 199-200. doi : 10.1155/S0161171290000291. http://gdmltest.u-ga.fr/item/04057631/