| article html file updated | 6 February 2020 20:25 CET | Update | https://www.mdpi.com/2071-1050/7/7/8837 |
| article html file updated | 20 September 2019 23:52 CEST | Update | N/A |
| article html file updated | 6 May 2019 16:17 CEST | Update | N/A |
| article html file updated | 26 March 2019 06:05 CET | Update | N/A |
| article html file updated | 21 August 2015 14:33 CEST | Update | N/A |
| article html file updated | 19 August 2015 10:09 CEST | Original file | N/A |
| article xml file uploaded | 19 August 2015 10:09 CEST | Original file | https://www.mdpi.com/2071-1050/7/7/8837/xml |
| article pdf uploaded. | 9 July 2015 08:45 CEST | Updated version of record | https://www.mdpi.com/2071-1050/7/7/8837/pdf |
| article pdf uploaded. | 7 July 2015 13:21 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/7/8837/pdf-vor |
