But there is no substantial documentation of the history of tea drinking in the Indian subcontinent for the pre-colonial period.

There is other substantial documentation, both from the CIA and the US Drug Enforcement Agency.

"I felt completely confident about my reporting, and I had substantial documentation," Mr. Mason said.

The substantial archival documentation on the census has been used in many modern studies and international publications.

The existing literature contains case histories describing both the success and failure of air sparging; however, since the technology is relatively new, there are few cases with substantial documentation of performance.

But substantial documentation on radiation risks to the breast has accumulated since the late 1960's.

The certificates require substantial documentation, including a set of the owner's fingerprints.

There is substantial documentation at the United Nations which I think should also be examined more thoroughly by this Parliament.

There remains substantial unreleased documentation related to these issues.