Cong, P., 		Tung, V., 		Hai, D., & 		Khoa, N.
(2021).
 Free Vibration and Bending of Gradient Auxetic Plate Using Finite Element Method.
<em>VNU Journal Of Science: Mathematics - Physics, 37</em>(4).
doi:10.25073/2588-1124/vnumap.4664