| article html file updated | 6 February 2020 08:12 CET | Update | https://www.mdpi.com/2072-6651/6/4/1155 |
| article html file updated | 7 May 2019 16:45 CEST | Update | - |
| article html file updated | 21 March 2019 14:34 CET | Update | - |
| article html file updated | 20 August 2015 01:12 CEST | Update | - |
| article html file updated | 12 May 2014 15:32 CEST | Original file | - |
| article xml file uploaded | 12 May 2014 15:32 CEST | Original file | https://www.mdpi.com/2072-6651/6/4/1155/xml |
| article pdf uploaded. | 26 March 2014 11:20 CET | Version of Record | https://www.mdpi.com/2072-6651/6/4/1155/pdf |
