21.   Ebbers has said he will repay loans by selling other assets, but he has never identified other sources of wealth large enough to cover his obligations.

22.   For example, computer simulation programs helped to identify sources of powertrain noise that could then be eliminated or insulated.

23.   Galley proofs of the book were obtained on condition that the source not be identified.

24.   Gingrich did not accuse any specific people of drug use or identify his source.

25.   He also said that the police laboratory had not been able to identify the source of the contamination in those other cases.

26.   He cannot identify the source of the rage that produced his dark, almost defiantly uncommercial early work.

27.   He has not been presented in public, and the newspaper did not identify the source of its information.

28.   He repeated that he will not identify the source until he gets permission or the source dies.

29.   He studied how the fish surround themselves with an electric current to aid navigation, avoid predators, identify sources of food and communicate with one another.

30.   He said he was terminated a short time later because he would not identify the source of the e-mail.