| article html file updated | 13 February 2020 23:48 CET | Update | https://www.mdpi.com/2076-0787/8/4/159 |
| article html file updated | 11 October 2019 09:14 CEST | Original file | N/A |
| article pdf uploaded. | 11 October 2019 09:13 CEST | Version of Record | https://www.mdpi.com/2076-0787/8/4/159/pdf |
| article xml uploaded. | 11 October 2019 09:13 CEST | Update | https://www.mdpi.com/2076-0787/8/4/159/xml |
| article xml file uploaded | 11 October 2019 09:13 CEST | Original file | N/A |
