D. Frenz

Cities as harbingers of climate change: common ragweed, urbanization, and public health.

L. Ziska, Dennis E. Gebhard, D. Frenz, 2003, The Journal of allergy and clinical immunology.

A comparison of total pollen counts obtained 5.6 km apart

D. Frenz, L. W. Murray, R. E. Sand, 1997 .

Research note: Increasing Amb a 1 content in common ragweed (Ambrosia artemisiifolia) pollen as a function of rising atmospheric CO2 concentration.

L. Ziska, Dennis E. Gebhard, D. Frenz, 2005, Functional plant biology : FPB.

Recent warming by latitude associated with increased length of ragweed pollen season in central North America

Jonathan A. Patz, J. Patz, L. Ziska, 2011, Proceedings of the National Academy of Sciences.

A brief method for analyzing Rotorod® samples for pollen content

D. Frenz, L. W. Murray, J. Hokanson, 1996 .

An atmospheric pollen survey conducted during the winter in Minneapolis, Minnesota, USA

D. Frenz, L. W. Murray, 1997 .

Establishment and persistence of common ragweed (Ambrosia artemisiifolia L.) in disturbed soil as a function of an urban–rural macro‐environment

L. Ziska, K. George, D. Frenz, 2007 .