@electronic{www-307.ibm.com,
   title       = {Lenovo Support & downloads - ThinkVantage System Update 4.0}, 
   url         = {http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=TVSU-UPDATE},
   biburl      = {https://puma.uni-kassel.de/url/b26670388ff875735fc155e29d4c0116/hotho},
   keywords    = {support system thinkpad update windows7},
   added-at    = {2009-10-29T21:41:10.000+0100},
   description = {ThinkVantage System Update 4.0},
   interhash   = {b26670388ff875735fc155e29d4c0116}, 
   intrahash   = {b26670388ff875735fc155e29d4c0116}
}

@electronic{store.microsoft.com,
   title       = {Microsoft Store: Download Manager Help}, 
   url         = {http://store.microsoft.com/Help/ISO-Tool?err=t2#at2},
   biburl      = {https://puma.uni-kassel.de/url/5a184ce097658665e1660e06197e4fd0/hotho},
   keywords    = {download tools usb windows7},
   added-at    = {2009-10-26T08:24:31.000+0100},
   description = {},
   interhash   = {5a184ce097658665e1660e06197e4fd0}, 
   intrahash   = {5a184ce097658665e1660e06197e4fd0}
}