| article html file updated | 8 February 2020 03:15 CET | Update | https://www.mdpi.com/1996-1073/10/4/511 |
| article html file updated | 24 September 2019 05:56 CEST | Update | - |
| article html file updated | 4 May 2019 02:51 CEST | Update | - |
| article html file updated | 28 April 2017 06:14 CEST | Update | - |
| article html file updated | 10 April 2017 11:34 CEST | Original file | - |
| article xml uploaded. | 10 April 2017 11:32 CEST | Update | https://www.mdpi.com/1996-1073/10/4/511/xml |
| article pdf uploaded. | 10 April 2017 11:32 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/511/pdf |
