| article html file updated | 30 August 2025 02:02 CEST | Update | https://www.mdpi.com/1996-1944/11/1/4 |
| article html file updated | 16 July 2022 08:05 CEST | Update | N/A |
| article html file updated | 9 February 2020 00:44 CET | Update | N/A |
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| article html file updated | 21 December 2017 12:42 CET | Original file | N/A |
| article xml uploaded. | 21 December 2017 12:41 CET | Update | https://www.mdpi.com/1996-1944/11/1/4/xml |
| article xml uploaded. | 21 December 2017 12:41 CET | Original file | N/A |
| article pdf uploaded. | 21 December 2017 12:41 CET | Version of Record | https://www.mdpi.com/1996-1944/11/1/4/pdf |
