?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Benson&rft.au=Benson%2C+Jonathan+Miles&rft.aufirst=Jonathan+Miles&rft.degree=Doctoral&rft.inst=UCL+(University+College+London)&rft.tpages=267&rft.title=The+Development+of+a+Model+of+Multitasking+Behaviour&rft.date=1991