TY - RPRT TI - Three-dimensional single molecule rotational diffusion in glassy state polymer films. AU - Andrew P Bartko AU - Kewei Xu AU - Robert M Dickson PY - 2002 DO - 10.1103/physrevlett.89.026101 UR - https://pubmed.ncbi.nlm.nih.gov/12097008/ ID - 12097008 ER -