| article html file updated | 8 October 2020 16:51 CEST | Update | https://www.mdpi.com/2304-6732/7/1/15 |
| article html file updated | 1 April 2020 21:05 CEST | Update | - |
| article html file updated | 25 March 2020 03:36 CET | Original file | - |
| article xml uploaded. | 25 March 2020 03:35 CET | Update | https://www.mdpi.com/2304-6732/7/1/15/xml |
| article pdf uploaded. | 25 March 2020 03:35 CET | Updated version of record | https://www.mdpi.com/2304-6732/7/1/15/pdf |
| article pdf uploaded. | 21 January 2020 11:24 CET | Version of Record | https://www.mdpi.com/2304-6732/7/1/15/pdf-vor |
| article xml file uploaded | 21 January 2020 11:24 CET | Original file | - |
