| article html file updated | 24 December 2025 21:58 CET | Update | https://www.mdpi.com/2199-8531/6/4/103 |
| article html file updated | 1 September 2025 10:03 CEST | Update | N/A |
| article html file updated | 22 July 2022 09:32 CEST | Update | N/A |
| article html file updated | 7 November 2020 02:34 CET | Update | N/A |
| article pdf uploaded. | 7 November 2020 02:33 CET | Updated version of record | https://www.mdpi.com/2199-8531/6/4/103/pdf |
| article xml uploaded. | 7 November 2020 02:33 CET | Update | https://www.mdpi.com/2199-8531/6/4/103/xml |
| article xml file uploaded | 7 November 2020 02:33 CET | Update | N/A |
| article html file updated | 29 October 2020 09:35 CET | Original file | N/A |
| article pdf uploaded. | 29 October 2020 09:34 CET | Updated version of record | https://www.mdpi.com/2199-8531/6/4/103/pdf-vor |
| article xml uploaded. | 29 October 2020 09:34 CET | Update | N/A |
| article xml file uploaded | 29 October 2020 09:34 CET | Original file | N/A |
| article pdf uploaded. | 2 October 2020 19:08 CEST | Version of Record | https://www.mdpi.com/2199-8531/6/4/103/pdf-vor |
