| article html file updated | 29 August 2025 22:52 CEST | Update | https://www.mdpi.com/2079-4991/6/3/51 |
| article html file updated | 16 July 2022 02:01 CEST | Update | - |
| article html file updated | 7 February 2020 06:11 CET | Update | - |
| article html file updated | 5 May 2019 20:51 CEST | Update | - |
| article html file updated | 26 March 2019 23:58 CET | Update | - |
| article html file updated | 24 February 2017 10:19 CET | Update | - |
| article html file updated | 28 March 2016 11:28 CEST | Original file | - |
| article xml uploaded. | 22 March 2016 08:01 CET | Original file | https://www.mdpi.com/2079-4991/6/3/51/xml |
| article pdf uploaded. | 22 March 2016 08:01 CET | Version of Record | https://www.mdpi.com/2079-4991/6/3/51/pdf |
