%ASongaila, A.%AHu, E.%ABarger, A.%ACowie, L.%AHasinger, G.%ARosenwasser, B.%AWaters, C.%BJournal Name: The Astrophysical Journal; Journal Volume: 859; Journal Issue: 2 %D2018%I %JJournal Name: The Astrophysical Journal; Journal Volume: 859; Journal Issue: 2 %K %MOSTI ID: 10059484 %PMedium: X %TComplex Ly α Profiles in Redshift 6.6 Ultraluminous Ly α Emitters %X %0Journal Article