| article html file updated | 8 February 2020 03:26 CET | Update | https://www.mdpi.com/2313-433X/3/2/13 |
| article html file updated | 4 May 2019 02:30 CEST | Update | N/A |
| article html file updated | 12 April 2017 12:45 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2017 12:44 CEST | Update | https://www.mdpi.com/2313-433X/3/2/13/xml |
| article pdf uploaded. | 12 April 2017 12:44 CEST | Version of Record | https://www.mdpi.com/2313-433X/3/2/13/pdf |
