| article html file updated | 30 August 2025 00:40 CEST | Update | https://www.mdpi.com/2071-1050/9/4/499 |
| article html file updated | 21 August 2025 19:17 CEST | Update | - |
| article html file updated | 8 February 2020 02:18 CET | Update | - |
| article html file updated | 24 September 2019 00:33 CEST | Update | - |
| article html file updated | 4 May 2019 04:55 CEST | Update | - |
| article html file updated | 28 April 2017 10:45 CEST | Update | - |
| article html file updated | 27 March 2017 14:46 CEST | Original file | - |
| article xml uploaded. | 27 March 2017 14:45 CEST | Update | https://www.mdpi.com/2071-1050/9/4/499/xml |
| article pdf uploaded. | 27 March 2017 14:45 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/499/pdf |
| article pdf uploaded. | 26 March 2017 13:04 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/499/pdf-vor |
