| article html file updated | 6 February 2020 08:47 CET | Update | https://www.mdpi.com/2072-6651/6/4/1434 |
| article html file updated | 7 May 2019 15:32 CEST | Update | N/A |
| article html file updated | 21 March 2019 15:57 CET | Update | N/A |
| article html file updated | 20 August 2015 04:14 CEST | Update | N/A |
| article html file updated | 12 May 2014 15:34 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2014 15:34 CEST | Original file | https://www.mdpi.com/2072-6651/6/4/1434/xml |
| article pdf uploaded. | 22 April 2014 14:23 CEST | Version of Record | https://www.mdpi.com/2072-6651/6/4/1434/pdf |
