| article html file updated | 29 August 2025 21:17 CEST | Update | https://www.mdpi.com/2076-3263/4/4/269 |
| article html file updated | 15 July 2022 23:28 CEST | Update | N/A |
| article html file updated | 6 February 2020 12:53 CET | Update | N/A |
| article html file updated | 7 May 2019 07:00 CEST | Update | N/A |
| article html file updated | 22 March 2019 02:46 CET | Update | N/A |
| article html file updated | 20 August 2015 23:24 CEST | Update | N/A |
| article html file updated | 20 October 2014 11:29 CEST | Update | N/A |
| article xml file uploaded | 20 October 2014 11:29 CEST | Update | https://www.mdpi.com/2076-3263/4/4/269/xml |
| article html file updated | 19 October 2014 15:58 CEST | Original file | N/A |
| article xml file uploaded | 19 October 2014 15:58 CEST | Original file | N/A |
| article pdf uploaded. | 16 October 2014 15:18 CEST | Version of Record | https://www.mdpi.com/2076-3263/4/4/269/pdf |