TY - RPRT TI - Crystallographic observation of nonenzymatic RNA primer extension AU - Szostak, J. W. AU - Zhang, W. AU - Walton, T. AU - Li, L. PY - 2018 DO - 10.1101/287102 UR - https://www.biorxiv.org/content/10.1101/287102v1 ID - 10.1101/287102 ER -