| article html file updated | 11 February 2020 00:56 CET | Update | https://www.mdpi.com/2227-7099/6/4/64 |
| article html file updated | 11 October 2019 09:23 CEST | Update | - |
| article html file updated | 28 April 2019 00:20 CEST | Update | - |
| article html file updated | 13 April 2019 20:14 CEST | Update | - |
| article html file updated | 2 April 2019 06:55 CEST | Update | - |
| article html file updated | 26 December 2018 05:48 CET | Update | - |
| article html file updated | 13 December 2018 11:50 CET | Original file | - |
| article pdf uploaded. | 13 December 2018 11:49 CET | Updated version of record | https://www.mdpi.com/2227-7099/6/4/64/pdf |
| article xml uploaded. | 13 December 2018 11:49 CET | Update | https://www.mdpi.com/2227-7099/6/4/64/xml |
| article xml file uploaded | 13 December 2018 11:49 CET | Update | - |
| article pdf uploaded. | 3 December 2018 16:17 CET | Updated version of record | https://www.mdpi.com/2227-7099/6/4/64/pdf-vor |
| article pdf uploaded. | 3 December 2018 16:02 CET | Version of Record | https://www.mdpi.com/2227-7099/6/4/64/pdf-vor |
| article xml file uploaded | 3 December 2018 16:02 CET | Original file | - |
