| article html file updated | 7 February 2020 11:35 CET | Update | https://www.mdpi.com/1996-1073/9/7/536 |
| article html file updated | 5 May 2019 10:21 CEST | Update | N/A |
| article html file updated | 27 March 2019 10:04 CET | Update | N/A |
| article html file updated | 27 July 2016 09:57 CEST | Update | N/A |
| article html file updated | 13 July 2016 08:07 CEST | Original file | N/A |
| article xml uploaded. | 13 July 2016 08:05 CEST | Original file | https://www.mdpi.com/1996-1073/9/7/536/xml |
| article pdf uploaded. | 13 July 2016 08:05 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/7/536/pdf |
