Maintenance of the DNA puff expanded state is independent of active replication...

Mok, E. H., H. S. Smith, S. M. DiBartolomeis, A. W. Kerrebrock, L. Rothschild, T. S. Lange, and S. A. Gerbi (2001), Maintenance of the DNA puff expanded state is independent of active replication and transcription, Chromosoma, 110, 186-196.