@ARTICLE {PERRY:1999, title = {Simulation of counts of aphids over two hectares of Brussels sprout plants}, author = {Perry, J. and Parker, W. E. and Alderson, L. and Korie, S. and Blood-Smyth, J. A. and McKinlay, R. and Ellis, S. A. }, journal = {Computers and Electronics in Agriculture}, year = {1999}, volume = {21}, pages = {33--51}, issn = {0168-1699}, }