| article html file updated | 8 February 2020 06:00 CET | Update | https://www.mdpi.com/2227-7102/7/2/54 |
| article html file updated | 24 September 2019 20:38 CEST | Update | - |
| article html file updated | 3 May 2019 21:47 CEST | Update | - |
| article html file updated | 27 October 2017 09:58 CEST | Update | - |
| article html file updated | 26 May 2017 09:20 CEST | Update | - |
| article xml uploaded. | 26 May 2017 09:18 CEST | Update | https://www.mdpi.com/2227-7102/7/2/54/xml |
| article pdf uploaded. | 26 May 2017 09:18 CEST | Updated version of record | https://www.mdpi.com/2227-7102/7/2/54/pdf |
| article html file updated | 23 May 2017 04:20 CEST | Update | - |
| article html file updated | 16 May 2017 15:58 CEST | Original file | - |
| article pdf uploaded. | 16 May 2017 15:57 CEST | Version of Record | https://www.mdpi.com/2227-7102/7/2/54/pdf-vor |
