| article html file updated | 6 February 2020 21:40 CET | Update | https://www.mdpi.com/2071-1050/7/8/10994 |
| article html file updated | 6 May 2019 13:45 CEST | Update | - |
| article html file updated | 26 March 2019 08:31 CET | Update | - |
| article html file updated | 3 September 2015 03:56 CEST | Update | - |
| article xml file uploaded | 3 September 2015 03:56 CEST | Original file | https://www.mdpi.com/2071-1050/7/8/10994/xml |
| article html file updated | 21 August 2015 15:34 CEST | Original file | - |
| article pdf uploaded. | 12 August 2015 13:01 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/8/10994/pdf |
