- Bolster, K. L., Martin, M. E., Aber, J. D. 1996. Determination of carbon fraction and nitrogen concentration in tree foliage by near infrared reflectance: a comparison of statistical methods. Canadian Journal of Forest Research 26: 590-600.
- Lepine, L. C., Ollinger, S. V., Ouimette, A. P., Martin, M. E. 2016. Examining Spectral Reflectance Features Related to Foliar Nitrogen in Forests: Implications for Broad-Scale Nitrogen Mapping. Remote Sensing of Environment 173: 174-186.
- Martin, M. E. 1994. Measurements of foliar chemistry using laboratory and airborne high spectral resolution visible and infrared data. Thesis, University of New Hampshire.
- Martin, M. E., Aber, J. D. 1997. High Spectral Resolution Remote Sensing of Forest Canopy Lignin, Nitrogen, and Ecosystem Processes. Ecological Applications 7: 431-443.
- Martin, M. E., Plourde, L. C., Ollinger, S. V., Smith, M-L., McNeil, B. E. 2008. A generalizable method for remote sensing of canopy nitrogen across a wide range of forest ecosystems. Remote Sensing of Environment 112: 3511-3519.