| article html file updated | 8 February 2020 23:23 CET | Update | https://www.mdpi.com/2227-7080/5/4/79 |
| article html file updated | 29 September 2019 01:10 CEST | Update | - |
| article html file updated | 2 May 2019 10:07 CEST | Update | - |
| article html file updated | 18 April 2019 07:46 CEST | Update | - |
| article html file updated | 2 January 2018 11:14 CET | Update | - |
| article html file updated | 7 December 2017 11:02 CET | Original file | - |
| article xml uploaded. | 7 December 2017 11:01 CET | Update | https://www.mdpi.com/2227-7080/5/4/79/xml |
| article xml uploaded. | 7 December 2017 11:01 CET | Original file | - |
| article pdf uploaded. | 7 December 2017 11:01 CET | Version of Record | https://www.mdpi.com/2227-7080/5/4/79/pdf |
