| article html file updated | 8 February 2020 09:38 CET | Update | https://www.mdpi.com/2227-7102/7/3/67 |
| article html file updated | 25 September 2019 15:37 CEST | Update | N/A |
| article html file updated | 3 May 2019 14:55 CEST | Update | N/A |
| article html file updated | 27 October 2017 09:59 CEST | Update | N/A |
| article html file updated | 10 July 2017 13:20 CEST | Update | N/A |
| article xml uploaded. | 10 July 2017 13:18 CEST | Update | https://www.mdpi.com/2227-7102/7/3/67/xml |
| article pdf uploaded. | 10 July 2017 13:18 CEST | Updated version of record | https://www.mdpi.com/2227-7102/7/3/67/pdf |
| article html file updated | 29 June 2017 14:41 CEST | Original file | N/A |
| article pdf uploaded. | 29 June 2017 14:40 CEST | Version of Record | https://www.mdpi.com/2227-7102/7/3/67/pdf-vor |
