| article html file updated | 7 February 2020 05:22 CET | Update | https://www.mdpi.com/2411-5142/1/1/118 |
| article html file updated | 5 May 2019 22:36 CEST | Update | N/A |
| article html file updated | 26 March 2019 22:24 CET | Original file | N/A |
| article pdf uploaded. | 3 March 2016 08:36 CET | Version of Record | https://www.mdpi.com/2411-5142/1/1/118/pdf |
| article xml uploaded. | 3 March 2016 08:36 CET | Original file | https://www.mdpi.com/2411-5142/1/1/118/xml |
