| article html file updated | 7 February 2020 15:02 CET | Update | https://www.mdpi.com/2308-3417/1/3/23 |
| article html file updated | 5 May 2019 04:00 CEST | Update | - |
| article html file updated | 15 September 2016 08:33 CEST | Original file | - |
| article xml uploaded. | 15 September 2016 08:31 CEST | Original file | https://www.mdpi.com/2308-3417/1/3/23/xml |
| article pdf uploaded. | 15 September 2016 08:31 CEST | Version of Record | https://www.mdpi.com/2308-3417/1/3/23/pdf |
