| article html file updated | 9 February 2020 08:24 CET | Update | https://www.mdpi.com/2304-6775/6/1/8 |
| article html file updated | 1 May 2019 14:45 CEST | Update | - |
| article html file updated | 17 April 2019 14:20 CEST | Update | - |
| article html file updated | 29 March 2019 03:22 CET | Update | - |
| article html file updated | 27 March 2018 12:20 CEST | Update | - |
| article html file updated | 2 March 2018 11:00 CET | Original file | - |
| article xml uploaded. | 2 March 2018 10:59 CET | Original file | https://www.mdpi.com/2304-6775/6/1/8/xml |
| article pdf uploaded. | 2 March 2018 10:59 CET | Version of Record | https://www.mdpi.com/2304-6775/6/1/8/pdf |
