Michael Vielhaber Mónica del Pilar Canales Chacon The Hausdorff Dimension of the Set of <i>r</i>-Perfect <i>M</i>-Multisequences. 259-270 2006 conf/seta/2006 SETA http://dx.doi.org/10.1007/11863854_22 db/conf/seta/seta2006.html#VielhaberC06