Feng Liang,  Xiaodong Yang,  Wei Zhang,  Yingjing Qian & Roderick V. N. Melnik. (2020). Parametric Vibration Analysis of Pipes Conveying Fluid by Nonlinear Normal Modes and a Numerical Iterative Approach.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>11</i> (1).
            38-52.
         doi:10.4208/aamm.OA-2018-0064