User-agent: *
#Disallow: /
Request-rate: 1/10
Visit-time: 0200-0645
Disallow: /*?*
Disallow: /~meng
Disallow: /~cherba
Disallow: /~lgrabowski
Disallow: /sendto_form
Disallow: /*_print*.html
Disallow: /*?sessionid 
Disallow: /document_view*
Request-rate: 1/10         # maximum rate is one page every 5 seconds