The Gamma-Ray Giant Flare from SGR 1806-20: Evidence of Crustal Cracking via Initial Timescales - Schwartz,SJ; Zane,S; Wilson,RJ; Pijpers,FP; Moore,DR; Kataria,DO; Horbury,TS; Fazakerley,AN; Cargill,PJ (\apjl, 2005)