TY - RPRT TI - Macroscopic, Hierarchical, Two-Dimensional Self-Assembly. AU - IS Choi AU - N Bowden AU - GM Whitesides PY - 1999 DO - 10.1002/(sici)1521-3773(19991018)38:20<3078::aid-anie3078>3.0.co;2-3 UR - https://pubmed.ncbi.nlm.nih.gov/10540428/ ID - 10540428 ER -