%0 Journal Article %A Polishchuk, A. %T Simple Helices on Fano Threefolds %J Canadian mathematical bulletin %D 2011 %P 520-526 %V 54 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2010-106-x/ %R 10.4153/CMB-2010-106-x %F 10_4153_CMB_2010_106_x