| article html file updated | 8 February 2020 02:09 CET | Update | https://www.mdpi.com/2071-1050/9/4/487 |
| article html file updated | 23 September 2019 23:46 CEST | Update | - |
| article html file updated | 4 May 2019 05:14 CEST | Update | - |
| article html file updated | 28 April 2017 10:43 CEST | Update | - |
| article html file updated | 27 March 2017 05:30 CEST | Update | - |
| article html file updated | 24 March 2017 22:30 CET | Update | - |
| article html file updated | 24 March 2017 09:56 CET | Original file | - |
| article xml uploaded. | 24 March 2017 09:55 CET | Update | https://www.mdpi.com/2071-1050/9/4/487/xml |
| article pdf uploaded. | 24 March 2017 09:55 CET | Version of Record | https://www.mdpi.com/2071-1050/9/4/487/pdf |
