Ráðunautafundur - 15.02.1989, Page 35

-27-
Thompson, A.G. & Milner, C., 1988. The prediction of sheep population density on
different range types by satellite remote sensing. In Third Int. Rangeland Congr.
Nov. 1988, New Delhi. Abstract Vol I. Range Management Society of India:3 8-43.
Usher, M.B. (ed.), 1986. Wildlife conservation evaluaation. London: Chapman and
Hall.
Ellis-Williams, I., 1988. Land use interactions in Snowdonia: A matrix approach to
defining impacts. M.Sc. Thesis in Rural Resource Management. University of Wales.
Williams, J.H., 1986. Assessing upland grassland condition from airborne multispectral
data. In NERC 1986. Airborne Campaign Results, Institute of Hydrology, Wallingford.
Williams, J.G., 1987. The quantitative evaluation of upland grassland using remotely
sensed data. 13th Annual Conference, Remote Sensing Soc. University Nottingham,
September 1987.
Williams, J.H., 1988. Vegetation survey in upland Wales: reconciling ground and
satellite surveys. In Ecological change in the uplands (ed. M.B. Usher & D.B.A.
Thompson). British Ecological Soc. Symposium No. 7. Sept 1987: 119-124.
Wright, I.A., 1988. Suckler beef production In Efficient beef production from grass
(ed. J. Frame). British Grassl. Soc. Symp. No. 22: 51-64.