Two European pension funds have written a letter to Oracle Corp complaining about leading shareholder Larry Ellison's large influence over the U.S. business software company and urging it to allow outsider shareholders a greater say in the company's unpopular pay policies. It is the latest salvo in a four-year campaign by Dutch fund group PGGM and Britain's Railways Pension Trustee Company Ltd, known as Railpen, against Ellison and his company's governance, which has so far brought no response at all from Oracle, and only limited support from other shareholders.