| article html file updated | 30 August 2025 00:25 CEST | Update | https://www.mdpi.com/2226-4787/5/1/7 |
| article html file updated | 16 July 2022 04:54 CEST | Update | - |
| article html file updated | 7 February 2020 23:38 CET | Update | - |
| article html file updated | 4 May 2019 10:48 CEST | Update | - |
| article html file updated | 28 March 2017 11:54 CEST | Update | - |
| article html file updated | 17 February 2017 12:33 CET | Original file | - |
| article xml uploaded. | 17 February 2017 12:31 CET | Original file | https://www.mdpi.com/2226-4787/5/1/7/xml |
| article pdf uploaded. | 17 February 2017 12:31 CET | Version of Record | https://www.mdpi.com/2226-4787/5/1/7/pdf |
