| article html file updated | 8 February 2020 02:51 CET | Update | https://www.mdpi.com/1424-8220/17/4/761 |
| article html file updated | 12 September 2019 09:26 CEST | Update | N/A |
| article html file updated | 12 September 2019 09:24 CEST | Update | N/A |
| article html file updated | 12 September 2019 09:23 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:43 CEST | Update | N/A |
| article html file updated | 29 April 2017 13:50 CEST | Update | N/A |
| article html file updated | 4 April 2017 12:23 CEST | Original file | N/A |
| article xml uploaded. | 4 April 2017 12:21 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/761/xml |
| article pdf uploaded. | 4 April 2017 12:21 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/761/pdf |
