| article html file updated | 7 February 2020 09:47 CET | Update | https://www.mdpi.com/1424-8220/16/6/820 |
| article html file updated | 5 May 2019 13:40 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:45 CET | Update | N/A |
| article html file updated | 29 June 2016 10:28 CEST | Update | N/A |
| article html file updated | 8 June 2016 12:46 CEST | Update | N/A |
| article xml uploaded. | 8 June 2016 12:45 CEST | Update | https://www.mdpi.com/1424-8220/16/6/820/xml |
| article pdf uploaded. | 8 June 2016 12:45 CEST | Updated version of record | https://www.mdpi.com/1424-8220/16/6/820/pdf |
| article html file updated | 4 June 2016 12:28 CEST | Original file | N/A |
| article pdf uploaded. | 4 June 2016 12:27 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/820/pdf-vor |
