| article html file updated | 8 February 2020 12:14 CET | Update | https://www.mdpi.com/2313-0105/3/3/22 |
| article html file updated | 26 September 2019 05:31 CEST | Update | - |
| article html file updated | 3 May 2019 09:36 CEST | Update | - |
| article html file updated | 27 March 2019 18:08 CET | Update | - |
| article html file updated | 28 July 2017 14:55 CEST | Original file | - |
| article xml uploaded. | 28 July 2017 14:54 CEST | Original file | https://www.mdpi.com/2313-0105/3/3/22/xml |
| article pdf uploaded. | 28 July 2017 14:54 CEST | Version of Record | https://www.mdpi.com/2313-0105/3/3/22/pdf |
