| article html file updated | 7 February 2020 08:24 CET | Update | https://www.mdpi.com/2313-433X/2/2/16 |
| article html file updated | 5 May 2019 16:22 CEST | Update | N/A |
| article html file updated | 27 March 2019 04:09 CET | Update | N/A |
| article html file updated | 9 May 2016 13:47 CEST | Original file | N/A |
| article xml uploaded. | 9 May 2016 13:46 CEST | Original file | https://www.mdpi.com/2313-433X/2/2/16/xml |
| article pdf uploaded. | 9 May 2016 13:46 CEST | Version of Record | https://www.mdpi.com/2313-433X/2/2/16/pdf |
