| article html file updated | 8 February 2020 05:06 CET | Update | https://www.mdpi.com/2071-1050/9/5/721 |
| article html file updated | 24 September 2019 15:58 CEST | Update | N/A |
| article html file updated | 3 May 2019 23:26 CEST | Update | N/A |
| article html file updated | 31 May 2017 10:29 CEST | Update | N/A |
| article html file updated | 23 May 2017 03:43 CEST | Update | N/A |
| article html file updated | 5 May 2017 15:20 CEST | Original file | N/A |
| article xml uploaded. | 5 May 2017 15:19 CEST | Original file | https://www.mdpi.com/2071-1050/9/5/721/xml |
| article pdf uploaded. | 5 May 2017 15:19 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/5/721/pdf |
