| article html file updated | 30 August 2025 00:13 CEST | Update | https://www.mdpi.com/2076-0825/6/1/4 |
| article html file updated | 16 July 2022 04:29 CEST | Update | - |
| article html file updated | 7 February 2020 21:23 CET | Update | - |
| article html file updated | 22 September 2019 20:53 CEST | Update | - |
| article html file updated | 4 May 2019 15:30 CEST | Update | - |
| article html file updated | 29 March 2017 10:32 CEST | Update | - |
| article html file updated | 13 January 2017 08:30 CET | Original file | - |
| article xml uploaded. | 13 January 2017 08:28 CET | Update | https://www.mdpi.com/2076-0825/6/1/4/xml |
| article xml uploaded. | 13 January 2017 08:28 CET | Original file | - |
| article pdf uploaded. | 13 January 2017 08:28 CET | Version of Record | https://www.mdpi.com/2076-0825/6/1/4/pdf |
