| article html file updated | 24 December 2025 17:35 CET | Update | https://www.mdpi.com/2227-9067/7/2/15 |
| article html file updated | 31 August 2025 11:57 CEST | Update | N/A |
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| article html file updated | 24 February 2020 10:05 CET | Update | N/A |
| article pdf uploaded. | 24 February 2020 10:03 CET | Updated version of record | https://www.mdpi.com/2227-9067/7/2/15/pdf |
| article xml uploaded. | 24 February 2020 10:03 CET | Update | https://www.mdpi.com/2227-9067/7/2/15/xml |
| article xml file uploaded | 24 February 2020 10:03 CET | Update | N/A |
| article html file updated | 18 February 2020 09:16 CET | Original file | N/A |
| article pdf uploaded. | 18 February 2020 09:15 CET | Version of Record | https://www.mdpi.com/2227-9067/7/2/15/pdf-vor |
| article xml uploaded. | 18 February 2020 09:15 CET | Update | N/A |
| article xml file uploaded | 18 February 2020 09:15 CET | Original file | N/A |
