| article html file updated | 7 February 2020 13:22 CET | Update | https://www.mdpi.com/2073-4344/6/8/123 |
| article html file updated | 5 May 2019 07:02 CEST | Update | - |
| article html file updated | 27 March 2019 13:44 CET | Update | - |
| article html file updated | 25 August 2016 11:47 CEST | Update | - |
| article html file updated | 16 August 2016 09:45 CEST | Original file | - |
| article xml uploaded. | 16 August 2016 09:43 CEST | Update | https://www.mdpi.com/2073-4344/6/8/123/xml |
| article xml uploaded. | 16 August 2016 09:43 CEST | Original file | - |
| article pdf uploaded. | 16 August 2016 09:43 CEST | Version of Record | https://www.mdpi.com/2073-4344/6/8/123/pdf |
