Comparison of an Innovative Nonlinear Algorithm to Classical Least-Squares for Analyzing Open-Path Fourier Transform Infrared Spectra Collected at a Concentrated Swine Production Facility pp. 325-336(12) Authors: Childers, Jeffrey W.; Phillips, William J.; Thompson, Edgar L.; Harris, D. Bruce; Kirchgessner, David A.; Natschke, David F.; Clayton, Matthew