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 |
---|---|---|
10/14/10 21:05:09 | http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900004013_1990004013.pdf | |
09/21/20 14:37:11 | https://ntrs.nasa.gov/citations/1990004013 | |
09/22/21 13:54:02 | https://purl.fdlp.gov/history/GPO/LPS61169 | Withdrawn from the Federal Depository Library Program, 8/2021 |