11.   It has also given new life to previously dubious Serbian claims that the Bosnian authorities are sending armed groups into Serbian territory.

12.   The lesson seems to be, Keep a sharp eye for dubious claims when shopping for a moderately priced receiver, then let your ears decide.

13.   The problem with the movement is that it has always reacted to dubious claims first and informed itself later, if at all.

14.   The leaders, replying that many of the dissidents have dubious claims of membership, set up new offices in the casino.