| article html file updated | 8 February 2020 05:13 CET | Update | https://www.mdpi.com/2075-1680/6/2/12 |
| article html file updated | 24 September 2019 16:35 CEST | Update | - |
| article html file updated | 3 May 2019 23:13 CEST | Update | - |
| article html file updated | 30 June 2017 10:12 CEST | Update | - |
| article html file updated | 23 May 2017 03:48 CEST | Update | - |
| article html file updated | 9 May 2017 02:58 CEST | Original file | - |
| article xml uploaded. | 9 May 2017 02:57 CEST | Original file | https://www.mdpi.com/2075-1680/6/2/12/xml |
| article pdf uploaded. | 9 May 2017 02:57 CEST | Updated version of record | https://www.mdpi.com/2075-1680/6/2/12/pdf |
| article pdf uploaded. | 6 May 2017 10:02 CEST | Version of Record | https://www.mdpi.com/2075-1680/6/2/12/pdf-vor |
