In many cases the specific sources of the fluctuations are known.

However, it is also possible to determine more specific sources for the play.

They set standards for sometimes specific sources of pollution like automobiles.

There are several speeches for which we can cite a specific source.

But it didn't rule out a more specific source of disturbance.

The result is a scent that doesn't refer to any specific source.

However, it is characterized the action in which people focus their attention on a specific source of a sound or spoken words.

Thus tests must be made with each specific source, such as a mobile phone model, and at the intended position of use.

In general the answers are "yes" to all, unfortunately I can't give you any specific sources.

As a result, the official said, the speech was changed to attribute each statement to a specific source.