| article html file updated | 11 February 2020 00:10 CET | Update | https://www.mdpi.com/2227-7102/8/4/208 |
| article html file updated | 11 October 2019 04:39 CEST | Update | - |
| article html file updated | 28 April 2019 01:54 CEST | Update | - |
| article html file updated | 13 April 2019 21:54 CEST | Update | - |
| article html file updated | 2 April 2019 04:49 CEST | Update | - |
| article html file updated | 27 December 2018 00:16 CET | Update | - |
| article html file updated | 30 November 2018 04:10 CET | Original file | - |
| article pdf uploaded. | 30 November 2018 04:08 CET | Version of Record | https://www.mdpi.com/2227-7102/8/4/208/pdf |
| article xml uploaded. | 30 November 2018 04:08 CET | Update | https://www.mdpi.com/2227-7102/8/4/208/xml |
| article xml file uploaded | 30 November 2018 04:08 CET | Original file | - |
