| article html file updated | 30 August 2025 00:19 CEST | Update | https://www.mdpi.com/2073-4360/9/2/39 |
| article html file updated | 16 July 2022 04:41 CEST | Update | N/A |
| article html file updated | 7 February 2020 22:24 CET | Update | N/A |
| article html file updated | 23 September 2019 02:32 CEST | Update | N/A |
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| article html file updated | 1 March 2017 11:10 CET | Update | N/A |
| article html file updated | 7 February 2017 07:46 CET | Original file | N/A |
| article xml uploaded. | 7 February 2017 07:44 CET | Original file | https://www.mdpi.com/2073-4360/9/2/39/xml |
| article pdf uploaded. | 7 February 2017 07:44 CET | Updated version of record | https://www.mdpi.com/2073-4360/9/2/39/pdf |
| article pdf uploaded. | 28 January 2017 08:20 CET | Version of Record | https://www.mdpi.com/2073-4360/9/2/39/pdf-vor |
