| article html file updated | 7 February 2020 13:34 CET | Update | https://www.mdpi.com/1996-1073/9/8/662 |
| article html file updated | 5 May 2019 06:41 CEST | Update | - |
| article html file updated | 27 March 2019 14:06 CET | Update | - |
| article html file updated | 25 August 2016 11:41 CEST | Update | - |
| article html file updated | 19 August 2016 09:43 CEST | Original file | - |
| article xml uploaded. | 19 August 2016 09:42 CEST | Original file | https://www.mdpi.com/1996-1073/9/8/662/xml |
| article pdf uploaded. | 19 August 2016 09:42 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/8/662/pdf |
