%0 Journal Article %A CodecĂ , P. %A Nair, M. %T Extremal Values of %J Canadian mathematical bulletin %D 1998 %P 335-347 %V 41 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1998-046-3/ %R 10.4153/CMB-1998-046-3 %F 10_4153_CMB_1998_046_3