| article html file updated | 12 February 2020 04:42 CET | Update | https://www.mdpi.com/2079-9292/8/4/424 |
| article html file updated | 9 May 2019 12:11 CEST | Update | N/A |
| article html file updated | 25 April 2019 13:31 CEST | Update | N/A |
| article html file updated | 11 April 2019 14:34 CEST | Original file | N/A |
| article pdf uploaded. | 11 April 2019 14:32 CEST | Version of Record | https://www.mdpi.com/2079-9292/8/4/424/pdf |
| article xml uploaded. | 11 April 2019 14:32 CEST | Update | https://www.mdpi.com/2079-9292/8/4/424/xml |
| article xml file uploaded | 11 April 2019 14:32 CEST | Original file | N/A |
