Percec, Virgil; Hudson, Steven D.; Peterca, Mihai; Leowanawat, Pawaret; Aqad, Emad; Graf, Robert; Spiess, Hans W.; Zeng, Xiangbing; Ungar, Goran; Heiney, Paul A. Journal of the American Chemical Society, 2011, vol. 133, # 45 p. 18479 - 18494 doi: 10.1021/ja208501d