| article html file updated | 13 February 2020 21:12 CET | Update | https://www.mdpi.com/2076-0787/8/4/156 |
| article html file updated | 29 September 2019 05:50 CEST | Original file | - |
| article pdf uploaded. | 29 September 2019 05:49 CEST | Version of Record | https://www.mdpi.com/2076-0787/8/4/156/pdf |
| article xml uploaded. | 29 September 2019 05:49 CEST | Update | https://www.mdpi.com/2076-0787/8/4/156/xml |
| article xml file uploaded | 29 September 2019 05:49 CEST | Original file | - |
