| article html file updated | 8 February 2020 10:42 CET | Update | https://www.mdpi.com/1996-1073/10/7/969 |
| article html file updated | 25 September 2019 21:05 CEST | Update | N/A |
| article html file updated | 3 May 2019 12:57 CEST | Update | N/A |
| article html file updated | 31 July 2017 07:11 CEST | Update | N/A |
| article html file updated | 11 July 2017 11:33 CEST | Original file | N/A |
| article xml uploaded. | 11 July 2017 11:32 CEST | Original file | https://www.mdpi.com/1996-1073/10/7/969/xml |
| article pdf uploaded. | 11 July 2017 11:32 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/969/pdf |
