| article html file updated | 29 August 2025 21:14 CEST | Update | https://www.mdpi.com/2075-1729/4/3/457 |
| article html file updated | 15 July 2022 23:22 CEST | Update | - |
| article html file updated | 6 February 2020 12:02 CET | Update | - |
| article html file updated | 7 May 2019 08:40 CEST | Update | - |
| article html file updated | 22 March 2019 00:25 CET | Update | - |
| article html file updated | 20 August 2015 17:39 CEST | Update | - |
| article html file updated | 24 October 2014 07:44 CEST | Update | - |
| article xml file uploaded | 24 October 2014 07:44 CEST | Update | https://www.mdpi.com/2075-1729/4/3/457/xml |
| article html file updated | 29 September 2014 08:55 CEST | Original file | - |
| article xml file uploaded | 29 September 2014 08:55 CEST | Original file | - |
| article pdf uploaded. | 9 September 2014 14:03 CEST | Updated version of record | https://www.mdpi.com/2075-1729/4/3/457/pdf |
| article pdf uploaded. | 5 September 2014 13:51 CEST | Version of Record | https://www.mdpi.com/2075-1729/4/3/457/pdf-vor |
