A Roll Controlling Approach for a Simple Dual-Actuated Flapping Aerial Vehicle ModelOmar El-Farouk E. Labib, Sarah W. El-Safty, Mohamed H. El-Kouly, Mohamed M. Ramadan, Omar M. Shehata and ElSayed I. MorganMATEC Web Conf., 68 (2016) 10004DOI: https://doi.org/10.1051/matecconf/20166810004