| article html file updated | 11 February 2020 22:09 CET | Update | https://www.mdpi.com/2304-6775/7/1/21 |
| article html file updated | 26 April 2019 03:22 CEST | Update | - |
| article html file updated | 11 April 2019 22:25 CEST | Update | - |
| article html file updated | 10 April 2019 19:59 CEST | Update | - |
| article html file updated | 4 April 2019 13:08 CEST | Update | - |
| article html file updated | 14 March 2019 09:20 CET | Original file | - |
| article pdf uploaded. | 14 March 2019 09:18 CET | Version of Record | https://www.mdpi.com/2304-6775/7/1/21/pdf |
| article xml uploaded. | 14 March 2019 09:18 CET | Update | https://www.mdpi.com/2304-6775/7/1/21/xml |
| article xml file uploaded | 14 March 2019 09:18 CET | Original file | - |
