| article html file updated | 14 August 2026 17:11 CEST | Update | https://www.mdpi.com/1660-3397/15/9/281 |
| article html file updated | 30 August 2025 01:06 CEST | Update | N/A |
| article html file updated | 16 July 2022 06:08 CEST | Update | N/A |
| article html file updated | 8 February 2020 15:05 CET | Update | N/A |
| article html file updated | 26 September 2019 21:30 CEST | Update | N/A |
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| article html file updated | 30 September 2017 12:32 CEST | Update | N/A |
| article html file updated | 3 September 2017 10:59 CEST | Original file | N/A |
| article xml uploaded. | 3 September 2017 10:58 CEST | Update | https://www.mdpi.com/1660-3397/15/9/281/xml |
| article xml uploaded. | 3 September 2017 10:58 CEST | Original file | N/A |
| article pdf uploaded. | 3 September 2017 10:58 CEST | Updated version of record | https://www.mdpi.com/1660-3397/15/9/281/pdf |
| article pdf uploaded. | 1 September 2017 12:01 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/9/281/pdf-vor |
