| article html file updated | 7 February 2020 13:12 CET | Update | https://www.mdpi.com/1996-1073/9/8/629 |
| article html file updated | 5 May 2019 07:21 CEST | Update | - |
| article html file updated | 27 March 2019 13:23 CET | Update | - |
| article html file updated | 25 August 2016 11:33 CEST | Update | - |
| article html file updated | 11 August 2016 11:28 CEST | Original file | - |
| article xml uploaded. | 11 August 2016 11:27 CEST | Original file | https://www.mdpi.com/1996-1073/9/8/629/xml |
| article pdf uploaded. | 11 August 2016 11:27 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/8/629/pdf |
