Gravel bar shielding: a mechanism responsible for bar stability in gravel‐ and cobble‐bedded streams - Prado, Ariel do; Galeazzi, Cristiano Padalino; Mair, David; Garefalakis, Philippos; Almeida, Renato Paes de; Whittaker, Alexander C.; Schlunegger, Fritz (Earth Surface Processes and Landforms, 2025)