| article html file updated | 9 February 2020 06:11 CET | Update | https://www.mdpi.com/2313-433X/4/2/38 |
| article html file updated | 30 September 2019 16:38 CEST | Update | N/A |
| article html file updated | 1 May 2019 19:28 CEST | Update | N/A |
| article html file updated | 17 April 2019 18:38 CEST | Update | N/A |
| article html file updated | 28 March 2019 22:22 CET | Update | N/A |
| article html file updated | 14 March 2018 11:50 CET | Update | N/A |
| article html file updated | 10 February 2018 12:37 CET | Original file | N/A |
| article xml uploaded. | 10 February 2018 12:36 CET | Update | https://www.mdpi.com/2313-433X/4/2/38/xml |
| article xml uploaded. | 10 February 2018 12:36 CET | Original file | N/A |
| article pdf uploaded. | 10 February 2018 12:36 CET | Version of Record | https://www.mdpi.com/2313-433X/4/2/38/pdf |
