@article{10_4064_fm_95_3_147_155,
     author = {Micha{\l} Jaegermann},
     title = {Normal radicals},
     journal = {Fundamenta Mathematicae},
     pages = {147--155},
     publisher = {mathdoc},
     volume = {95},
     number = {3},
     year = {1977},
     doi = {10.4064/fm-95-3-147-155},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-95-3-147-155/}
}