Multi-phase evolution of gnammas (weathering pits) in a Holocene deglacial granite landscape, Minnesota (USA).Published in:Earth Surface Processes & Landforms, 2008, v. 33, n. 2, p. 165, doi. 10.1002/esp.1532By:David Domínguez-Villar;Jennings, Carrie E.Publication type:Article