%0 Journal Article %A Helversen-Pasotto, Anna %A Solé, Patrick %T Barnes' First Lemma and its Finite Analogue %J Canadian mathematical bulletin %D 1993 %P 273-282 %V 36 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1993-039-1/ %R 10.4153/CMB-1993-039-1 %F 10_4153_CMB_1993_039_1