| article html file updated | 16 August 2026 01:35 CEST | Update | https://www.mdpi.com/2227-7390/7/6/502 |
| article html file updated | 30 August 2025 20:37 CEST | Update | N/A |
| article html file updated | 19 July 2022 19:31 CEST | Update | N/A |
| article html file updated | 12 February 2020 17:05 CET | Update | N/A |
| article html file updated | 21 October 2019 04:55 CEST | Update | N/A |
| article html file updated | 4 July 2019 14:13 CEST | Update | N/A |
| article html file updated | 23 June 2019 12:29 CEST | Original file | N/A |
| article pdf uploaded. | 23 June 2019 12:28 CEST | Updated version of record | https://www.mdpi.com/2227-7390/7/6/502/pdf |
| article xml uploaded. | 23 June 2019 12:28 CEST | Update | https://www.mdpi.com/2227-7390/7/6/502/xml |
| article xml file uploaded | 23 June 2019 12:28 CEST | Update | N/A |
| article pdf uploaded. | 2 June 2019 05:45 CEST | Version of Record | https://www.mdpi.com/2227-7390/7/6/502/pdf-vor |
| article xml file uploaded | 2 June 2019 05:45 CEST | Original file | N/A |
