| article html file updated | 29 August 2025 21:04 CEST | Update | https://www.mdpi.com/2218-273X/4/2/527 |
| article html file updated | 15 July 2022 23:03 CEST | Update | - |
| article html file updated | 6 February 2020 09:17 CET | Update | - |
| article html file updated | 7 May 2019 14:28 CEST | Update | - |
| article html file updated | 21 March 2019 17:08 CET | Update | - |
| article html file updated | 14 March 2018 13:27 CET | Update | - |
| article html file updated | 20 August 2015 07:11 CEST | Update | - |
| article html file updated | 18 July 2014 03:56 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 03:56 CEST | Original file | https://www.mdpi.com/2218-273X/4/2/527/xml |
| article pdf uploaded. | 16 May 2014 09:14 CEST | Version of Record | https://www.mdpi.com/2218-273X/4/2/527/pdf |