A Photographic Quadrat Recording Method Employing Image Analysis of Lichens as an Indicator of Environmental Change

Purvis, O. W., Erotokritou, L., Wolseley, P. A., Williamson, B., & Read, H. (2002). A Photographic Quadrat Recording Method Employing Image Analysis of Lichens as an Indicator of Environmental Change. In Monitoring with Lichens — Monitoring Lichens (pp. 337–341). Springer Netherlands. https://doi.org/10.1007/978-94-010-0423-7_31