Taft G., A. Rundquist, M. Murnane, H. Kapteyn, K.W. DeLong, R. Trebino, and I. Christov, Optics Letters 20, 743 (1995).
Thomann I., A. Bahabad, X. Liu, R. Trebino, M. Murnane, and H. Kapteyn, Optics Express 17, 4611 (2009).
Thomann I., E. Gregonis, X. Liu, R. Trebino, A.S. Sandhu, M. Murnane, and H. Kapteyn, Physical Review A 78, (2008).