| article html file updated | 14 February 2020 02:29 CET | Update | https://www.mdpi.com/2227-9091/7/4/106 |
| article html file updated | 31 December 2019 00:06 CET | Update | N/A |
| article html file updated | 25 October 2019 07:32 CEST | Original file | N/A |
| article pdf uploaded. | 25 October 2019 07:31 CEST | Updated version of record | https://www.mdpi.com/2227-9091/7/4/106/pdf |
| article xml uploaded. | 25 October 2019 07:30 CEST | Update | https://www.mdpi.com/2227-9091/7/4/106/xml |
| article xml file uploaded | 25 October 2019 07:30 CEST | Update | N/A |
| article pdf uploaded. | 20 October 2019 11:41 CEST | Version of Record | https://www.mdpi.com/2227-9091/7/4/106/pdf-vor |
| article xml file uploaded | 20 October 2019 11:41 CEST | Original file | N/A |
