| article html file updated | 6 February 2020 20:58 CET | Update | https://www.mdpi.com/2071-1050/7/8/9890 |
| article html file updated | 21 September 2019 00:42 CEST | Update | - |
| article html file updated | 6 May 2019 15:08 CEST | Update | - |
| article html file updated | 26 March 2019 07:13 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/2071-1050/7/8/9890/xml |
| article html file updated | 21 August 2015 15:11 CEST | Original file | - |
| article pdf uploaded. | 23 July 2015 11:35 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/8/9890/pdf |
