Gui G., A. Adak, M. Dandapat, D. Carlson, D. Morrill, H. Kapteyn, M. Murnane, and C.-T. Liao, Frontiers In Optics / Laser Science JW6A.18 (2020).
Lo Y., C.-T. Liao, J. Zhou, A. Rana, C.S. Bevis, G. Gui, B. Enders, K. Cannon, Y.-S. Yu, R. Celestre, and K. Nowrouzi, Science Advances 5, eaax3009 (2019).
and 
