Bock, M. Das, S. K. Grunwald, R. Media 1: Ultrashort highly localized wavepackets Originally published in Optics Express on 21 May 2012 (oe-20-11-12563) 21 May 2012;media;oe;Optics Express;Ultrashort;wavepacket 2012-05-21
    https://opticapublishing.figshare.com/articles/media/Media_1_Ultrashort_highly_localized_wavepackets/4943969
10.1364/OE.20.012563.m001