| article html file updated | 8 February 2020 09:54 CET | Update | https://www.mdpi.com/1996-1073/10/7/903 |
| article html file updated | 25 September 2019 17:09 CEST | Update | - |
| article html file updated | 3 May 2019 14:25 CEST | Update | - |
| article html file updated | 31 July 2017 06:57 CEST | Update | - |
| article html file updated | 2 July 2017 12:46 CEST | Original file | - |
| article xml uploaded. | 2 July 2017 12:45 CEST | Original file | https://www.mdpi.com/1996-1073/10/7/903/xml |
| article pdf uploaded. | 2 July 2017 12:45 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/903/pdf |
