| article html file updated | 8 February 2020 06:12 CET | Update | https://www.mdpi.com/2227-7102/7/2/55 |
| article html file updated | 24 September 2019 21:44 CEST | Update | - |
| article html file updated | 3 May 2019 21:22 CEST | Update | - |
| article html file updated | 27 October 2017 09:58 CEST | Update | - |
| article html file updated | 26 May 2017 03:57 CEST | Update | - |
| article xml uploaded. | 26 May 2017 03:56 CEST | Update | https://www.mdpi.com/2227-7102/7/2/55/xml |
| article pdf uploaded. | 26 May 2017 03:56 CEST | Updated version of record | https://www.mdpi.com/2227-7102/7/2/55/pdf |
| article html file updated | 22 May 2017 04:47 CEST | Update | - |
| article html file updated | 18 May 2017 15:41 CEST | Original file | - |
| article pdf uploaded. | 18 May 2017 15:40 CEST | Version of Record | https://www.mdpi.com/2227-7102/7/2/55/pdf-vor |
