@article{10_4153_CMB_2008_030_5,
     author = {Toc\'on, Maribel},
     title = {The {Kostrikin} {Radical} and the {Invariance} of the {Core} of {Reduced} {Extended} {Affine} {Lie} {Algebras}},
     journal = {Canadian mathematical bulletin},
     pages = {298--309},
     year = {2008},
     volume = {51},
     number = {2},
     doi = {10.4153/CMB-2008-030-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2008-030-5/}
}