| article html file updated | 7 February 2020 09:40 CET | Update | https://www.mdpi.com/1996-1944/9/6/436 |
| article html file updated | 5 May 2019 13:52 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:31 CET | Update | N/A |
| article html file updated | 28 June 2016 12:14 CEST | Update | N/A |
| article html file updated | 2 June 2016 22:46 CEST | Original file | N/A |
| article xml uploaded. | 2 June 2016 15:05 CEST | Original file | https://www.mdpi.com/1996-1944/9/6/436/xml |
| article pdf uploaded. | 2 June 2016 15:05 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/436/pdf |
