| article html file updated | 13 February 2020 20:01 CET | Update | https://www.mdpi.com/2076-0752/8/4/124 |
| article html file updated | 30 December 2019 09:23 CET | Update | N/A |
| article html file updated | 24 September 2019 16:11 CEST | Original file | N/A |
| article pdf uploaded. | 24 September 2019 16:10 CEST | Version of Record | https://www.mdpi.com/2076-0752/8/4/124/pdf |
| article xml uploaded. | 24 September 2019 16:10 CEST | Update | https://www.mdpi.com/2076-0752/8/4/124/xml |
| article xml file uploaded | 24 September 2019 16:10 CEST | Original file | N/A |
