References
- Beidar , K.I. , Fong , Y. and Ke , W.-F . 1998 . On complemented radicals . J. Algebra , 201 : 328 – 356 .
- Birkenmeier , G. 1994 . Radicals whose essential covers are semisimple classes . Communications in Algebra , 22 : 6239 – 6258 .
- Birkenmeier , G. and Wiegandt , R. 1996 . Essential covers and complements of radicals . Bull. Austral. Math. Soc , 53 : 261 – 266 .
- Gardner B.J. privte communication
- Gardner , B.J. 1984 . Small ideals in radical theory . Acta Math. Hung , 43 ( 3-4 ) : 287 – 294 .
- Gardner , B.J. and Liang , Z. 1992 . Small and large radical classes . Communications in Algebra , 20 ( 9 ) : 2533 – 2551 .
- Krachilov , K.K. 1979 . Coatoms of a lattice of special radicals . Mat Issed , 49 ( 9 ) : 80 – 86 . in Russian
- Mcdougall , R.G. 1999 . On elements of the lattice of all radical classes, part I: examples of pseudocomplements . Communications in Algebra , 27 ( 5 ) : 2441 – 5465 .
- Snider , R.L. 1972 . Lattices of radicals . Pacific J. of Math , 40 ( 1 )
- Snider , R.L. 1971 . Complemented hereditary radicals . Bull Austral Math. Soc , 4 ( 1 ) : 307 – 320 .