Yoo-Yong Lee, Ji-Hoon Lee, Ju-Young Cho, Na-Rae Kim, Dae-Hyun Nam, In-Suk Choi, Ki Tae Nam, and Young-Chang Joo, “Stretching-Induced Growth of PEDOT-Rich Cores: A New Mechanism for Strain-Dependent Resistivity Change in PEDOT:PSS Films”, Advanced Functional Materials 23(32), 2013 DOI: 10.1002/adfm.201203670.