| article html file updated | 7 February 2020 10:28 CET | Update | https://www.mdpi.com/1424-8220/16/6/920 |
| article html file updated | 5 May 2019 12:22 CEST | Update | N/A |
| article html file updated | 27 March 2019 08:01 CET | Update | N/A |
| article html file updated | 29 June 2016 11:08 CEST | Update | N/A |
| article html file updated | 23 June 2016 05:49 CEST | Update | N/A |
| article xml uploaded. | 23 June 2016 05:47 CEST | Update | https://www.mdpi.com/1424-8220/16/6/920/xml |
| article pdf uploaded. | 23 June 2016 05:47 CEST | Updated version of record | https://www.mdpi.com/1424-8220/16/6/920/pdf |
| article html file updated | 21 June 2016 11:07 CEST | Original file | N/A |
| article pdf uploaded. | 21 June 2016 11:05 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/920/pdf-vor |
