| article html file updated | 6 February 2020 07:21 CET | Update | https://www.mdpi.com/2072-4292/6/2/1538 |
| article html file updated | 7 May 2019 18:28 CEST | Update | - |
| article html file updated | 21 March 2019 12:33 CET | Update | - |
| article html file updated | 19 August 2015 20:58 CEST | Update | - |
| article html file updated | 14 August 2014 12:04 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:04 CEST | Update | https://www.mdpi.com/2072-4292/6/2/1538/xml |
| article html file updated | 20 March 2014 10:25 CET | Original file | - |
| article xml file uploaded | 20 March 2014 10:25 CET | Original file | - |
| article pdf uploaded. | 20 February 2014 10:00 CET | Version of Record | https://www.mdpi.com/2072-4292/6/2/1538/pdf |
