| article html file updated | 31 August 2025 12:11 CEST | Update | https://www.mdpi.com/2304-8158/9/2/221 |
| article html file updated | 20 July 2022 20:41 CEST | Update | N/A |
| article html file updated | 7 March 2020 13:30 CET | Update | N/A |
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| article html file updated | 20 February 2020 21:59 CET | Original file | N/A |
| article pdf uploaded. | 20 February 2020 09:00 CET | Version of Record | https://www.mdpi.com/2304-8158/9/2/221/pdf |
| article xml uploaded. | 20 February 2020 09:00 CET | Update | https://www.mdpi.com/2304-8158/9/2/221/xml |
| article xml file uploaded | 20 February 2020 09:00 CET | Original file | N/A |
