As of 2011, the article has been cited over 18,000 times.

He cited over twenty different studies in his research paper.

As of January 2011, the original paper has been cited over 1,700 times.

They cited differences over the direction of the campaign but were not more specific.

Papers published by the group since 1983 have been cited over 6,000 times.

In all, his publications have been cited over 4,000 times.

His work has been cited over 10,000 times in the literature of astronomy.

Others cite similar concerns over the financial stake in such research.

These papers and the one on memory testing have all been cited over 100 times.

He was cited over 14,000 times with an average of 450 citations per year since 1989.