Schmieder J, Fritz SC, Grimm EC, Jacobs KC, Brown KJ, Swinehart JB, Porter SC.  2013.  Holocene variability in hydrology, vegetation, fire, and eolian activity in the Nebraska Sand Hills, USA. The Holocene. 23(4):515-527.

Schmieder J., Fritz S.C., Swinehart J.B., Shinneman A.L.C., Wolfe A.P., Miller G., Daniels N., Jacobs K.C., Grimm E.C..  2011.  A regional-scale climate reconstruction of the last 4000 years from lakes in the Nebraska Sand Hills, USA. Quaternary Science Reviews. 30(13-14):1797-1812.