| article html file updated | 9 February 2020 17:48 CET | Update | https://www.mdpi.com/2313-4321/3/2/21 |
| article html file updated | 3 October 2019 15:36 CEST | Update | - |
| article html file updated | 30 April 2019 19:23 CEST | Update | - |
| article html file updated | 16 April 2019 19:50 CEST | Update | - |
| article html file updated | 30 March 2019 01:19 CET | Update | - |
| article html file updated | 16 May 2018 11:30 CEST | Original file | - |
| article pdf uploaded. | 16 May 2018 11:28 CEST | Version of Record | https://www.mdpi.com/2313-4321/3/2/21/pdf |
| article xml uploaded. | 16 May 2018 11:28 CEST | Update | https://www.mdpi.com/2313-4321/3/2/21/xml |
| article xml file uploaded | 16 May 2018 11:28 CEST | Original file | - |
