| article html file updated | 7 February 2020 19:34 CET | Update | https://www.mdpi.com/1424-8220/16/12/2120 |
| article html file updated | 22 September 2019 11:15 CEST | Update | N/A |
| article html file updated | 4 May 2019 19:20 CEST | Update | N/A |
| article html file updated | 27 December 2016 13:07 CET | Update | N/A |
| article html file updated | 14 December 2016 05:27 CET | Original file | N/A |
| article xml uploaded. | 14 December 2016 05:26 CET | Original file | https://www.mdpi.com/1424-8220/16/12/2120/xml |
| article pdf uploaded. | 14 December 2016 05:26 CET | Version of Record | https://www.mdpi.com/1424-8220/16/12/2120/pdf |
