| article html file updated | 9 February 2020 06:15 CET | Update | https://www.mdpi.com/1424-8220/18/2/549 |
| article html file updated | 30 September 2019 17:07 CEST | Update | N/A |
| article html file updated | 1 May 2019 19:16 CEST | Update | N/A |
| article html file updated | 17 April 2019 18:29 CEST | Update | N/A |
| article html file updated | 28 March 2019 22:32 CET | Update | N/A |
| article html file updated | 14 March 2018 19:40 CET | Update | N/A |
| article html file updated | 11 February 2018 05:07 CET | Original file | N/A |
| article xml uploaded. | 11 February 2018 05:06 CET | Update | https://www.mdpi.com/1424-8220/18/2/549/xml |
| article xml uploaded. | 11 February 2018 05:05 CET | Original file | N/A |
| article pdf uploaded. | 11 February 2018 05:05 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/549/pdf |
