| article html file updated | 12 February 2020 18:09 CET | Update | https://www.mdpi.com/2076-2607/7/6/168 |
| article html file updated | 21 October 2019 11:41 CEST | Update | - |
| article html file updated | 6 June 2019 14:09 CEST | Original file | - |
| article pdf uploaded. | 6 June 2019 14:07 CEST | Version of Record | https://www.mdpi.com/2076-2607/7/6/168/pdf |
| article xml uploaded. | 6 June 2019 14:07 CEST | Update | https://www.mdpi.com/2076-2607/7/6/168/xml |
| article xml file uploaded | 6 June 2019 14:07 CEST | Original file | - |
