| article html file updated | 31 August 2025 02:31 CEST | Update | https://www.mdpi.com/2199-8531/5/4/80 |
| article html file updated | 20 July 2022 02:06 CEST | Update | N/A |
| article html file updated | 13 February 2020 22:54 CET | Update | N/A |
| article html file updated | 7 October 2019 15:46 CEST | Original file | N/A |
| article pdf uploaded. | 7 October 2019 15:44 CEST | Version of Record | https://www.mdpi.com/2199-8531/5/4/80/pdf |
| article xml uploaded. | 7 October 2019 15:44 CEST | Update | https://www.mdpi.com/2199-8531/5/4/80/xml |
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