| article html file updated | 30 August 2025 00:20 CEST | Update | https://www.mdpi.com/2071-1050/9/2/209 |
| article html file updated | 16 July 2022 04:44 CEST | Update | N/A |
| article html file updated | 7 February 2020 22:39 CET | Update | N/A |
| article html file updated | 23 September 2019 03:50 CEST | Update | N/A |
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| article html file updated | 1 March 2017 10:29 CET | Update | N/A |
| article html file updated | 4 February 2017 09:53 CET | Original file | N/A |
| article xml uploaded. | 4 February 2017 09:52 CET | Update | https://www.mdpi.com/2071-1050/9/2/209/xml |
| article xml uploaded. | 4 February 2017 09:52 CET | Original file | N/A |
| article pdf uploaded. | 4 February 2017 09:52 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/209/pdf |
