| article html file updated | 8 February 2020 03:46 CET | Update | https://www.mdpi.com/2071-1050/9/4/627 |
| article html file updated | 24 September 2019 08:51 CEST | Update | - |
| article html file updated | 4 May 2019 01:52 CEST | Update | - |
| article html file updated | 28 April 2017 11:07 CEST | Update | - |
| article html file updated | 17 April 2017 22:21 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 15:12 CEST | Update | https://www.mdpi.com/2071-1050/9/4/627/xml |
| article pdf uploaded. | 17 April 2017 15:12 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/627/pdf |
