| article html file updated | 8 February 2020 02:55 CET | Update | https://www.mdpi.com/1424-8220/17/4/770 |
| article html file updated | 24 September 2019 04:05 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:33 CEST | Update | N/A |
| article html file updated | 29 April 2017 13:51 CEST | Update | N/A |
| article html file updated | 5 April 2017 15:48 CEST | Original file | N/A |
| article xml uploaded. | 5 April 2017 15:47 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/770/xml |
| article pdf uploaded. | 5 April 2017 15:47 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/770/pdf |
