| article html file updated | 8 February 2020 03:01 CET | Update | https://www.mdpi.com/1424-8220/17/4/781 |
| article html file updated | 24 September 2019 04:36 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:20 CEST | Update | N/A |
| article html file updated | 29 April 2017 13:54 CEST | Update | N/A |
| article html file updated | 6 April 2017 11:45 CEST | Original file | N/A |
| article xml uploaded. | 6 April 2017 11:44 CEST | Update | https://www.mdpi.com/1424-8220/17/4/781/xml |
| article pdf uploaded. | 6 April 2017 11:44 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/781/pdf |
