| article html file updated | 30 August 2025 02:58 CEST | Update | https://www.mdpi.com/2227-7080/6/1/33 |
| article html file updated | 16 July 2022 09:50 CEST | Update | - |
| article html file updated | 9 February 2020 09:30 CET | Update | - |
| article html file updated | 1 October 2019 13:02 CEST | Update | - |
| article html file updated | 1 May 2019 12:29 CEST | Update | - |
| article html file updated | 17 April 2019 12:12 CEST | Update | - |
| article html file updated | 29 March 2019 05:49 CET | Update | - |
| article html file updated | 28 March 2018 04:24 CEST | Update | - |
| article html file updated | 27 March 2018 16:54 CEST | Update | - |
| article html file updated | 13 March 2018 03:39 CET | Update | - |
| article xml uploaded. | 13 March 2018 03:38 CET | Update | https://www.mdpi.com/2227-7080/6/1/33/xml |
| article pdf uploaded. | 13 March 2018 03:38 CET | Updated version of record | https://www.mdpi.com/2227-7080/6/1/33/pdf |
| article html file updated | 12 March 2018 09:34 CET | Original file | - |
| article pdf uploaded. | 12 March 2018 09:33 CET | Version of Record | https://www.mdpi.com/2227-7080/6/1/33/pdf-vor |