| article html file updated | 9 February 2020 07:28 CET | Update | https://www.mdpi.com/1424-8220/18/2/669 |
| article html file updated | 1 October 2019 00:13 CEST | Update | N/A |
| article html file updated | 1 May 2019 16:40 CEST | Update | N/A |
| article html file updated | 17 April 2019 16:04 CEST | Update | N/A |
| article html file updated | 29 March 2019 01:07 CET | Update | N/A |
| article html file updated | 14 March 2018 20:11 CET | Update | N/A |
| article html file updated | 24 February 2018 09:04 CET | Original file | N/A |
| article xml uploaded. | 24 February 2018 09:02 CET | Update | https://www.mdpi.com/1424-8220/18/2/669/xml |
| article xml uploaded. | 24 February 2018 09:02 CET | Original file | N/A |
| article pdf uploaded. | 24 February 2018 09:02 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/669/pdf |
