| article html file updated | 14 August 2026 14:33 CEST | Update | https://www.mdpi.com/1999-4907/8/5/172 |
| article html file updated | 8 February 2020 06:05 CET | Update | N/A |
| article html file updated | 24 September 2019 21:05 CEST | Update | N/A |
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| article html file updated | 17 May 2017 13:38 CEST | Original file | N/A |
| article xml uploaded. | 17 May 2017 13:37 CEST | Original file | https://www.mdpi.com/1999-4907/8/5/172/xml |
| article pdf uploaded. | 17 May 2017 13:37 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/5/172/pdf |
