Erratum: Comparing turbulence in a Kelvin-Helmholtz instability region across the terrestrial magnetopause. Issue 4 (9th April 2021) - Quijia, Paulina; Fraternale, Federico; Stawarz, Julia E; Vásconez, Christian L; Perri, Silvia; Marino, Raffaele; Yordanova, Emiliya; Sorriso-Valvo, Luca