| article html file updated | 7 February 2020 05:20 CET | Update | https://www.mdpi.com/2308-3425/3/1/8 |
| article html file updated | 21 September 2019 12:24 CEST | Update | - |
| article html file updated | 5 May 2019 22:38 CEST | Update | - |
| article html file updated | 26 March 2019 22:22 CET | Original file | - |
| article pdf uploaded. | 4 March 2016 03:34 CET | Updated version of record | https://www.mdpi.com/2308-3425/3/1/8/pdf |
| article xml uploaded. | 4 March 2016 03:34 CET | Update | https://www.mdpi.com/2308-3425/3/1/8/xml |
| article pdf uploaded. | 2 March 2016 14:00 CET | Version of Record | https://www.mdpi.com/2308-3425/3/1/8/pdf-vor |
