Abrupt out-of-plane edge folding of a circular thin plate: Implication for a mature Victoria regia leafPengfei Yang, Chen Zhang, Fei Dang, Yuan Yan, Yilun Liu and Xi ChenEur. Phys. J. E, 39 9 (2016) 85DOI: https://doi.org/10.1140/epje/i2016-16085-6