Email address: c c h a p m a n (at) b o u l d e r . s w r i . e d u The email address has been obscured to make harvesting more difficult. Please remove spaces and replace (at) with @.
Website
http://www.boulder.swri.edu/clark/clark.html
ORCID ID
0000-0001-8455-1552
Affiliation
Southwest Research Inst. (retired)