| article html file updated | 30 August 2025 00:21 CEST | Update | https://www.mdpi.com/2309-608X/3/1/4 |
| article html file updated | 16 July 2022 04:45 CEST | Update | - |
| article html file updated | 7 February 2020 22:43 CET | Update | - |
| article html file updated | 23 September 2019 04:11 CEST | Update | - |
| article html file updated | 4 May 2019 12:37 CEST | Update | - |
| article html file updated | 11 December 2018 09:16 CET | Update | - |
| article html file updated | 11 December 2018 08:55 CET | Update | - |
| article html file updated | 5 February 2017 10:36 CET | Original file | - |
| article xml uploaded. | 5 February 2017 10:35 CET | Update | https://www.mdpi.com/2309-608X/3/1/4/xml |
| article xml uploaded. | 5 February 2017 10:35 CET | Original file | - |
| article pdf uploaded. | 5 February 2017 10:35 CET | Version of Record | https://www.mdpi.com/2309-608X/3/1/4/pdf |
