Swiss authorities are examining imposing losses on Credit Suisse bondholders as part of a rescue of the bank, two sources with knowledge of the matter said on Sunday. However, European regulators are apprehensive about such a move for fear that it could hit investor confidence elsewhere in Europe's financial sector, the sources said, speaking on the condition of anonymity. Losses on bondholders could need to be larger if Credit Suisse were wound down rather than if it were taken over by UBS, one of the sources said.