The target resource for this PURL can no longer be traced. The following is a list of the targets this PURL was previously assigned to.
| Timestamp | Target URL | Note |
|---|---|---|
| 06/04/18 12:10:25 | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19840025332.pdf | |
| 12/25/20 00:00:00 | https://ntrs.nasa.gov/citations/19840025332 | Batch modification of NTRS PURLs |
| 09/22/21 13:56:35 | https://purl.fdlp.gov/history/GPO/gpo92969 | Withdrawn from the Federal Depository Library Program, 8/2021 |