| article html file updated | 7 February 2020 04:38 CET | Update | https://www.mdpi.com/1996-1944/9/2/114 |
| article html file updated | 6 May 2019 00:10 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:53 CET | Original file | N/A |
| article pdf uploaded. | 17 February 2016 08:30 CET | Version of Record | https://www.mdpi.com/1996-1944/9/2/114/pdf |
| article xml uploaded. | 17 February 2016 08:30 CET | Original file | https://www.mdpi.com/1996-1944/9/2/114/xml |
