| article html file updated | 7 February 2020 04:35 CET | Update | https://www.mdpi.com/1996-1944/9/2/112 |
| article html file updated | 6 May 2019 00:18 CEST | Update | - |
| article html file updated | 26 March 2019 20:46 CET | Original file | - |
| article pdf uploaded. | 16 February 2016 08:17 CET | Version of Record | https://www.mdpi.com/1996-1944/9/2/112/pdf |
| article xml uploaded. | 16 February 2016 08:17 CET | Original file | https://www.mdpi.com/1996-1944/9/2/112/xml |
