| article html file updated | 8 February 2020 03:02 CET | Update | https://www.mdpi.com/2313-0105/3/2/13 |
| article html file updated | 24 September 2019 04:43 CEST | Update | - |
| article html file updated | 4 May 2019 03:18 CEST | Update | - |
| article html file updated | 6 April 2017 14:17 CEST | Update | - |
| article html file updated | 6 April 2017 14:17 CEST | Update | - |
| article html file updated | 6 April 2017 14:16 CEST | Original file | - |
| article xml uploaded. | 6 April 2017 14:15 CEST | Update | https://www.mdpi.com/2313-0105/3/2/13/xml |
| article pdf uploaded. | 6 April 2017 14:15 CEST | Version of Record | https://www.mdpi.com/2313-0105/3/2/13/pdf |
