| article html file updated | 12 February 2020 10:57 CET | Update | https://www.mdpi.com/2076-0787/8/2/90 |
| article html file updated | 9 May 2019 08:59 CEST | Original file | - |
| article pdf uploaded. | 9 May 2019 08:58 CEST | Version of Record | https://www.mdpi.com/2076-0787/8/2/90/pdf |
| article xml uploaded. | 9 May 2019 08:58 CEST | Update | https://www.mdpi.com/2076-0787/8/2/90/xml |
| article xml file uploaded | 9 May 2019 08:58 CEST | Original file | - |
