%0 Journal Article %A J. Spencer Baskin %A Ahmed H. Zewail %T Seeing in 4D with electrons: Development of ultrafast electron microscopy at Caltech %J Comptes Rendus. Physique %D 2014 %P 176-189 %V 15 %N 2-3 %I Elsevier %R 10.1016/j.crhy.2013.11.002 %G en %F CRPHYS_2014__15_2-3_176_0