Concordia College - Minnesota
An Ecosystem in Transition: Causes and Consequences of the Conversion of Mesic Grassland to Shrubland
2005 · John M. Briggs, Alan K. Knapp, et al. · BioScience
The Sample Analysis at Mars Investigation and Instrument Suite
2012 · P. R. Mahaffy, Christopher R. Webster, et al. · Space Science Reviews
Abundance and Isotopic Composition of Gases in the Martian Atmosphere from the Curiosity Rover
2013 · P. R. Mahaffy, Christopher R. Webster, et al. · Science