| article html file updated | 30 August 2025 02:22 CEST | Update | https://www.mdpi.com/2227-9040/6/1/7 |
| article html file updated | 16 July 2022 08:45 CEST | Update | - |
| article html file updated | 9 February 2020 04:10 CET | Update | - |
| article html file updated | 30 September 2019 04:25 CEST | Update | - |
| article html file updated | 1 May 2019 23:55 CEST | Update | - |
| article html file updated | 17 April 2019 22:27 CEST | Update | - |
| article html file updated | 28 March 2019 17:59 CET | Update | - |
| article html file updated | 26 March 2018 15:35 CEST | Update | - |
| article html file updated | 24 January 2018 10:06 CET | Original file | - |
| article xml uploaded. | 24 January 2018 10:04 CET | Update | https://www.mdpi.com/2227-9040/6/1/7/xml |
| article xml uploaded. | 24 January 2018 10:04 CET | Original file | - |
| article pdf uploaded. | 24 January 2018 10:04 CET | Version of Record | https://www.mdpi.com/2227-9040/6/1/7/pdf |
