K. Margulis, X. Zhang, L.-M. Joubert, K.Bruening, C. J. Tassone, R. N. Zare, and R. M. Waymouth, “Formation of Polymeric Nanocubes by Self-Assembly and Crystallization of Dithiolane-Containing Triblock Copolymers,” Angew. Chemie Int. Ed. 56, 16357-16362 (2017).