| article html file updated | 12 February 2020 12:53 CET | Update | https://www.mdpi.com/2313-4321/4/2/21 |
| article html file updated | 20 October 2019 05:43 CEST | Update | N/A |
| article html file updated | 16 May 2019 11:46 CEST | Original file | N/A |
| article pdf uploaded. | 16 May 2019 11:44 CEST | Version of Record | https://www.mdpi.com/2313-4321/4/2/21/pdf |
| article xml uploaded. | 16 May 2019 11:44 CEST | Update | https://www.mdpi.com/2313-4321/4/2/21/xml |
| article xml file uploaded | 16 May 2019 11:44 CEST | Original file | N/A |
