| article html file updated | 8 February 2020 04:01 CET | Update | https://www.mdpi.com/1996-1073/10/4/564 |
| article html file updated | 24 September 2019 10:18 CEST | Update | - |
| article html file updated | 4 May 2019 01:24 CEST | Update | - |
| article html file updated | 28 April 2017 06:28 CEST | Update | - |
| article html file updated | 24 April 2017 08:28 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 08:26 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/564/xml |
| article pdf uploaded. | 24 April 2017 08:26 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/564/pdf |
| article pdf uploaded. | 20 April 2017 13:46 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/564/pdf-vor |
