April 17, 2018
J.L. Ellis, K.M. Dorney, D.D. Hickstein, N.J. Brooks, C. Gentry, C. Hernández-García, D. Zusin, J.M. Shaw, Q.L. Nguyen, C.A. Mancuso, G.S. Jansen, S. Witte, H.C. Kapteyn and M.M. Murnane, High harmonics with spatially varying ellipticity, Optica 5, (4), 479-485 (2018)