| article html file updated | 30 August 2025 02:50 CEST | Update | https://www.mdpi.com/2227-9032/6/1/23 |
| article html file updated | 21 August 2025 19:36 CEST | Update | - |
| article html file updated | 16 July 2022 09:37 CEST | Update | - |
| article html file updated | 9 February 2020 08:24 CET | Update | - |
| article html file updated | 1 October 2019 05:28 CEST | Update | - |
| article html file updated | 1 May 2019 14:44 CEST | Update | - |
| article html file updated | 17 April 2019 14:19 CEST | Update | - |
| article html file updated | 29 March 2019 03:24 CET | Update | - |
| article html file updated | 27 March 2018 14:38 CEST | Update | - |
| article html file updated | 6 March 2018 03:36 CET | Update | - |
| article xml uploaded. | 6 March 2018 03:35 CET | Update | https://www.mdpi.com/2227-9032/6/1/23/xml |
| article pdf uploaded. | 6 March 2018 03:35 CET | Updated version of record | https://www.mdpi.com/2227-9032/6/1/23/pdf |
| article html file updated | 2 March 2018 14:40 CET | Original file | - |
| article pdf uploaded. | 2 March 2018 14:38 CET | Version of Record | https://www.mdpi.com/2227-9032/6/1/23/pdf-vor |