Sub-Alfvenic Solar Wind Observed by the Parker Solar Probe: Characterization of Turbulence, Anisotropy, Intermittency, and Switchback - Bandyopadhyay,R; Matthaeus,WH; McComas,DJ; Chhiber,R; Usmanov,A; Huang,J; Livi,R; Larson,DE; Kasper,JC; Case,AW; Stevens,M; Whittlesey,P; et al. (ASTROPHYSICAL JOURNAL LETTERS, 2022)