Clague, John J.; Barendregt, Rene; Enkin, Randolph J.; Franklin F. Foit Jr (March 2003). "Paleomagnetic and tephra evidence for tens of Missoula floods in southern Washington". Geology. 31 (3). The Geological Society of America: 247–250. Bibcode:2003Geo....31..247C. doi:10.1130/0091-7613(2003)031<0247:PATEFT>2.0.CO;2.
Clague, John J.; Barendregt, Rene; Enkin, Randolph J.; Franklin F. Foit Jr (March 2003). "Paleomagnetic and tephra evidence for tens of Missoula floods in southern Washington". Geology. 31 (3). The Geological Society of America: 247–250. Bibcode:2003Geo....31..247C. doi:10.1130/0091-7613(2003)031<0247:PATEFT>2.0.CO;2.