%0 Journal Article %A Reid, K.B. %T On Sets of Arcs Containing No Cycles in a Tournament* %J Canadian mathematical bulletin %D 1969 %P 261-264 %V 12 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-032-x/ %R 10.4153/CMB-1969-032-x %F 10_4153_CMB_1969_032_x