This is an update request for the document Approved by
by Alexander Tarasyev and Gordon Macdonald
Your paper was deposited in CiteSeerX
and appears online at http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.195.9099
Before we are able to make any updates or deletions, you must
ensure that the original record at this location is updated/removed.