1.
Hydrogeologic setting and the potentiometric surfaces of regional aquifers in the Hollandale embayment, southeastern Minnesota, 1970-80 /
2.
Interaction of surface water and ground water in the Dutch Flats area, western Nebraska, 1995-99 /
On the Propagation of Reaction Fronts in a Sandy Aquifer Over 20+ Years: Lessons From a Test Site in Northwestern Germany