| article html file updated | 29 August 2025 21:02 CEST | Update | https://www.mdpi.com/2076-3417/4/2/180 |
| article html file updated | 15 July 2022 23:00 CEST | Update | - |
| article html file updated | 6 February 2020 08:43 CET | Update | - |
| article html file updated | 7 May 2019 15:39 CEST | Update | - |
| article html file updated | 21 March 2019 15:48 CET | Update | - |
| article html file updated | 20 August 2015 03:54 CEST | Update | - |
| article html file updated | 3 February 2015 03:50 CET | Original file | - |
| article xml file uploaded | 3 February 2015 03:50 CET | Original file | https://www.mdpi.com/2076-3417/4/2/180/xml |
| article pdf uploaded. | 21 April 2014 11:44 CEST | Version of Record | https://www.mdpi.com/2076-3417/4/2/180/pdf |
