| article html file updated | 9 February 2020 13:09 CET | Update | https://www.mdpi.com/2227-7102/8/2/48 |
| article html file updated | 2 October 2019 10:48 CEST | Update | - |
| article html file updated | 1 May 2019 04:48 CEST | Update | - |
| article html file updated | 17 April 2019 05:03 CEST | Update | - |
| article html file updated | 29 March 2019 14:10 CET | Update | - |
| article html file updated | 27 June 2018 09:15 CEST | Update | - |
| article html file updated | 11 April 2018 09:23 CEST | Update | - |
| article xml uploaded. | 11 April 2018 09:22 CEST | Update | https://www.mdpi.com/2227-7102/8/2/48/xml |
| article pdf uploaded. | 11 April 2018 09:22 CEST | Updated version of record | https://www.mdpi.com/2227-7102/8/2/48/pdf |
| article html file updated | 10 April 2018 09:45 CEST | Original file | - |
| article pdf uploaded. | 10 April 2018 09:43 CEST | Version of Record | https://www.mdpi.com/2227-7102/8/2/48/pdf-vor |
