Pen-on-Paper Flexible Electronics Russo, Analisa ; Ahn, Bok Yeop ; Adams, Jacob J. ; Duoss, Eric B. ; Bernhard, Jennifer T. ; Lewis, Jennifer A. Abstract Publication: Advanced Materials Pub Date: August 2011 DOI: 10.1002/adma.201101328 Bibcode: 2011AdM....23.3426R