Köhler, R.; Restolho, J.; Krastev, R.; Shimizu, K.; Canongia Lopes, J.N.; Saramago, B.: Liquid- or solid-like behaviour of [omim][BF4] at a solid interface? Journal of Physical Chemistry Letters 2 (2011), p. 1551 - 1555
10.1021/jz2005682