| article html file updated | 8 February 2020 15:42 CET | Update | https://www.mdpi.com/2220-9964/6/9/287 |
| article html file updated | 27 September 2019 00:52 CEST | Update | - |
| article html file updated | 3 May 2019 02:51 CEST | Update | - |
| article html file updated | 26 September 2017 12:52 CEST | Update | - |
| article html file updated | 8 September 2017 15:30 CEST | Original file | - |
| article xml uploaded. | 8 September 2017 15:29 CEST | Update | https://www.mdpi.com/2220-9964/6/9/287/xml |
| article xml uploaded. | 8 September 2017 15:28 CEST | Original file | - |
| article pdf uploaded. | 8 September 2017 15:28 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/9/287/pdf |
