Aleinikoff JN, Muhs DR, Saner RR, Fanning CM.  1999.  Late Quaternary loess in northeastern Colorado: Part II - Pb isotopic evidence for the variability of loess sources. Geological Society of America Bulletin. 111:1876-1883. Abstract

Muhs DR, Aleinikoff JN, Stafford JTW, Kihl R, Been J, Mahan SA, Cowherd S.  1999.  Paleoclimatology - Late Quaternary loess in northeastern Colorado: Part I -- Age and paleoclimatic significance. Geological Society of America Bulletin. 111:1861.

Pierce KL, Muhs DR, Fosberg MA, Mahan SA, Rosenbaum JG, Licciardi JM, Pavich MJ.  2011.  A loess-paleosol record of climate and glacial history over the past two glacial-interglacial cycles (similar to 150 ka), southern Jackson Hole, Wyoming. Quaternary Research. 76:119-141. Abstract