| article html file updated | 7 February 2020 11:31 CET | Update | https://www.mdpi.com/2313-433X/2/3/21 |
| article html file updated | 5 May 2019 10:28 CEST | Update | N/A |
| article html file updated | 27 March 2019 09:57 CET | Update | N/A |
| article html file updated | 11 July 2016 14:48 CEST | Original file | N/A |
| article xml uploaded. | 11 July 2016 14:47 CEST | Original file | https://www.mdpi.com/2313-433X/2/3/21/xml |
| article pdf uploaded. | 11 July 2016 14:47 CEST | Version of Record | https://www.mdpi.com/2313-433X/2/3/21/pdf |
