| article html file updated | 8 February 2020 06:00 CET | Update | https://www.mdpi.com/2411-5142/2/2/16 |
| article html file updated | 3 May 2019 21:46 CEST | Update | N/A |
| article html file updated | 23 May 2017 04:20 CEST | Update | N/A |
| article html file updated | 16 May 2017 16:43 CEST | Original file | N/A |
| article xml uploaded. | 16 May 2017 16:42 CEST | Original file | https://www.mdpi.com/2411-5142/2/2/16/xml |
| article pdf uploaded. | 16 May 2017 16:42 CEST | Version of Record | https://www.mdpi.com/2411-5142/2/2/16/pdf |
