Smale S., P. He, B. Olsen, K. Jackson, H. Sharum, S. Trotzky, J. Marino, A.M. Rey, and J. Thywissen, Science Advances 5, eaax1568 (2019).
Tucker K.J., B. Zhu, R.J. Lewis-Swan, J. Marino, F. Jimenez, J.G. Restrepo, and A.M. Rey, New Journal Of Physics 20, 123003 (2018).