TY - RPRT TI - Challenges in Evaluating Relationships Between Quantitative Data (Carbon Dioxide) and Qualitative Data (Self-Reported Visual Changes) AU - Mendez, C. M. AU - Foy, M. AU - Mason, S. AU - Wear, M. L. AU - Meyers, V. AU - Law, J. AU - Alexander, D. AU - Van Baalen, M. PY - 2014 UR - https://ntrs.nasa.gov/citations/20140013488 ID - 20140013488 ER -