| article html file updated | 11 February 2020 19:52 CET | Update | https://www.mdpi.com/2409-9279/2/1/21 |
| article html file updated | 16 October 2019 00:07 CEST | Update | - |
| article html file updated | 26 April 2019 08:21 CEST | Update | - |
| article html file updated | 12 April 2019 03:54 CEST | Update | - |
| article html file updated | 4 April 2019 06:53 CEST | Update | - |
| article html file updated | 4 March 2019 11:04 CET | Original file | - |
| article pdf uploaded. | 4 March 2019 11:03 CET | Version of Record | https://www.mdpi.com/2409-9279/2/1/21/pdf |
| article xml uploaded. | 4 March 2019 11:03 CET | Update | https://www.mdpi.com/2409-9279/2/1/21/xml |
| article xml file uploaded | 4 March 2019 11:03 CET | Original file | - |
