@inproceedings{037eb3cfe87240cabc30876bc4640e40,
title = "Detection of spruce defoliation with microwave radar techniques",
keywords = "defoliation, forest inventory, microwave, radar, radar derived, remote sensing, scatterometer, defoliation, forest inventory, microwave, radar, radar derived, remote sensing, scatterometer, defoliation, forest inventory, microwave, radar, radar derived, remote sensing, scatterometer",
author = "J. Pulliainen and M. Hallikainen and J. Hyypp{\"a} and K. Heiska",
year = "1992",
language = "English",
pages = "939--944",
booktitle = "European Microwave Conference, Helsinki University of Technology, Espoo, 24.-27.8.1992",
publisher = "Microwave Exhibitions and Publishers",
address = "United Kingdom",
}