| article html file updated | 8 February 2020 08:34 CET | Update | https://www.mdpi.com/1996-1073/10/6/821 |
| article html file updated | 25 September 2019 09:56 CEST | Update | - |
| article html file updated | 3 May 2019 16:55 CEST | Update | - |
| article html file updated | 27 June 2017 10:23 CEST | Update | - |
| article html file updated | 20 June 2017 08:48 CEST | Original file | - |
| article xml uploaded. | 20 June 2017 08:47 CEST | Update | https://www.mdpi.com/1996-1073/10/6/821/xml |
| article pdf uploaded. | 20 June 2017 08:47 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/6/821/pdf |
| article pdf uploaded. | 17 June 2017 13:28 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/6/821/pdf-vor |
