@article{ADM_2007_3_a7,
     author = {B. J. Gardner},
     title = {There isn't much duality in radical theory},
     journal = {Algebra and discrete mathematics},
     pages = {59--66},
     publisher = {mathdoc},
     number = {3},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2007_3_a7/}
}