Grimley DA, Loope HM, Jacobs PM, T. Nash A, Dendy SN, Conroy JL, B. Curry B.  2024.  Updated chronology for Peoria Silt (loess) accumulation in Illinois and western Indiana from radiocarbon dating of terrestrial gastropod shells. Quaternary Research. :1?19.

Jacobs PM, Mason JA, Hanson PR.  2012.  Loess mantle spatial variability and soil horizonation, southern Wisconsin, USA. Quaternary International. 265:43-53.

Mason JA, Miao X, Hanson PR, Johnson WC, Jacobs PM, Goble RJ.  2008.  Loess record of the Pleistocene-Holocene transition on the northern and central Great Plains, USA. Quaternary Science Reviews. 27(17-18):1772-1783.