| article html file updated | 14 August 2026 14:05 CEST | Update | https://www.mdpi.com/1999-4907/8/5/138 |
| article html file updated | 8 February 2020 04:25 CET | Update | N/A |
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| article html file updated | 26 April 2017 14:54 CEST | Original file | N/A |
| article xml uploaded. | 26 April 2017 14:52 CEST | Original file | https://www.mdpi.com/1999-4907/8/5/138/xml |
| article pdf uploaded. | 26 April 2017 14:52 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/5/138/pdf |
