| article html file updated | 9 February 2020 22:14 CET | Update | https://www.mdpi.com/2410-390X/2/3/9 |
| article html file updated | 4 October 2019 19:06 CEST | Update | - |
| article html file updated | 30 April 2019 09:03 CEST | Update | - |
| article html file updated | 16 April 2019 04:02 CEST | Update | - |
| article html file updated | 30 March 2019 12:43 CET | Update | - |
| article html file updated | 21 June 2018 08:00 CEST | Original file | - |
| article pdf uploaded. | 21 June 2018 07:59 CEST | Version of Record | https://www.mdpi.com/2410-390X/2/3/9/pdf |
| article xml uploaded. | 21 June 2018 07:59 CEST | Update | https://www.mdpi.com/2410-390X/2/3/9/xml |
| article xml file uploaded | 21 June 2018 07:59 CEST | Original file | - |
