| article html file updated | 29 August 2025 23:52 CEST | Update | https://www.mdpi.com/2227-9067/3/4/27 |
| article html file updated | 16 July 2022 03:49 CEST | Update | - |
| article html file updated | 7 February 2020 17:48 CET | Update | - |
| article html file updated | 22 September 2019 05:15 CEST | Update | - |
| article html file updated | 4 May 2019 22:56 CEST | Update | - |
| article html file updated | 27 December 2016 02:26 CET | Update | - |
| article html file updated | 10 November 2016 09:24 CET | Original file | - |
| article xml uploaded. | 10 November 2016 09:23 CET | Original file | https://www.mdpi.com/2227-9067/3/4/27/xml |
| article pdf uploaded. | 10 November 2016 09:23 CET | Version of Record | https://www.mdpi.com/2227-9067/3/4/27/pdf |
