%0 Journal Article %T Nonenzymatic, template-directed ligation of oligoribonucleotides is highly regioselective for the formation of 3'-5' phosphodiester bonds. %A Rohatgi, R %A Bartel, D P %A Szostak, J W %J Journal of the American Chemical Society %V 118 %N 14 %P 3340-4 %@ 0002-7863 %D 1997-04-01 %~ DeepDyve