| article html file updated | 8 February 2020 10:15 CET | Update | https://www.mdpi.com/2075-1680/6/3/20 |
| article html file updated | 3 May 2019 13:45 CEST | Update | N/A |
| article html file updated | 30 September 2017 07:38 CEST | Update | N/A |
| article html file updated | 10 July 2017 12:11 CEST | Original file | N/A |
| article xml uploaded. | 10 July 2017 12:09 CEST | Original file | https://www.mdpi.com/2075-1680/6/3/20/xml |
| article pdf uploaded. | 10 July 2017 12:09 CEST | Updated version of record | https://www.mdpi.com/2075-1680/6/3/20/pdf |
| article pdf uploaded. | 6 July 2017 16:17 CEST | Version of Record | https://www.mdpi.com/2075-1680/6/3/20/pdf-vor |
