| article html file updated | 8 February 2020 06:24 CET | Update | https://www.mdpi.com/2313-433X/3/2/17 |
| article html file updated | 24 September 2019 22:46 CEST | Update | - |
| article html file updated | 3 May 2019 20:59 CEST | Update | - |
| article html file updated | 22 May 2017 05:13 CEST | Update | - |
| article html file updated | 21 May 2017 11:35 CEST | Original file | - |
| article xml uploaded. | 21 May 2017 11:33 CEST | Update | https://www.mdpi.com/2313-433X/3/2/17/xml |
| article pdf uploaded. | 21 May 2017 11:33 CEST | Version of Record | https://www.mdpi.com/2313-433X/3/2/17/pdf |
