| article html file updated | 8 February 2020 09:35 CET | Update | https://www.mdpi.com/1996-1073/10/7/874 |
| article html file updated | 25 September 2019 15:24 CEST | Update | - |
| article html file updated | 3 May 2019 14:59 CEST | Update | - |
| article html file updated | 31 July 2017 06:52 CEST | Update | - |
| article html file updated | 29 June 2017 12:51 CEST | Original file | - |
| article xml uploaded. | 29 June 2017 12:40 CEST | Original file | https://www.mdpi.com/1996-1073/10/7/874/xml |
| article pdf uploaded. | 29 June 2017 12:40 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/874/pdf |
