Dragan Marusic Raffaele Scapellato Imprimitive Representations of <i>SL</i>(2, 2<sup><i>k</i></sup>). 46-57 1993 58 J. Comb. Theory, Ser. B 1 http://dx.doi.org/10.1006/jctb.1993.1030 db/journals/jct/jctb58.html#MarusicS93