9Herzog F,Steiner B,Bailey D. et al. Assessing the in lensity of temperate European agriculture at the land- scape scale'J. European Journal of Agronomy, 2006, 24(2)=165 181.
10Thomas A G. Incentive property taxation= a potential tool for urban growth Management [J]. Journal of The American Planning Association,1999(2):62--?9.
