| article html file updated | 12 February 2020 10:22 CET | Update | https://www.mdpi.com/2079-9284/6/2/30 |
| article html file updated | 19 October 2019 15:51 CEST | Update | - |
| article html file updated | 7 May 2019 11:27 CEST | Original file | - |
| article pdf uploaded. | 7 May 2019 09:23 CEST | Version of Record | https://www.mdpi.com/2079-9284/6/2/30/pdf |
| article xml uploaded. | 7 May 2019 09:23 CEST | Update | https://www.mdpi.com/2079-9284/6/2/30/xml |
| article xml file uploaded | 7 May 2019 09:23 CEST | Original file | - |
