| article html file updated | 8 February 2020 08:14 CET | Update | https://www.mdpi.com/2227-7102/7/2/63 |
| article html file updated | 25 September 2019 08:06 CEST | Update | - |
| article html file updated | 3 May 2019 17:34 CEST | Update | - |
| article html file updated | 27 October 2017 09:58 CEST | Update | - |
| article html file updated | 15 June 2017 10:14 CEST | Update | - |
| article xml uploaded. | 15 June 2017 10:13 CEST | Update | https://www.mdpi.com/2227-7102/7/2/63/xml |
| article pdf uploaded. | 15 June 2017 10:13 CEST | Updated version of record | https://www.mdpi.com/2227-7102/7/2/63/pdf |
| article html file updated | 13 June 2017 15:37 CEST | Original file | - |
| article pdf uploaded. | 13 June 2017 15:36 CEST | Version of Record | https://www.mdpi.com/2227-7102/7/2/63/pdf-vor |
