| article html file updated | 12 February 2020 06:39 CET | Update | https://www.mdpi.com/2076-0787/8/2/81 |
| article html file updated | 25 April 2019 11:03 CEST | Update | - |
| article pdf uploaded. | 25 April 2019 11:01 CEST | Updated version of record | https://www.mdpi.com/2076-0787/8/2/81/pdf |
| article xml uploaded. | 25 April 2019 11:01 CEST | Update | https://www.mdpi.com/2076-0787/8/2/81/xml |
| article xml file uploaded | 25 April 2019 11:01 CEST | Update | - |
| article html file updated | 25 April 2019 08:57 CEST | Update | - |
| article html file updated | 20 April 2019 04:44 CEST | Original file | - |
| article pdf uploaded. | 20 April 2019 04:42 CEST | Version of Record | https://www.mdpi.com/2076-0787/8/2/81/pdf-vor |
| article xml file uploaded | 20 April 2019 04:42 CEST | Original file | - |
