| article html file updated | 7 February 2020 10:12 CET | Update | https://www.mdpi.com/1996-1944/9/6/474 |
| article html file updated | 5 May 2019 12:54 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:32 CET | Update | N/A |
| article html file updated | 28 June 2016 12:24 CEST | Update | N/A |
| article html file updated | 15 June 2016 10:43 CEST | Original file | N/A |
| article xml uploaded. | 15 June 2016 10:41 CEST | Update | https://www.mdpi.com/1996-1944/9/6/474/xml |
| article pdf uploaded. | 15 June 2016 10:41 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/474/pdf |
