| article html file updated | 9 February 2020 00:10 CET | Update | https://www.mdpi.com/2079-9292/6/4/110 |
| article html file updated | 29 September 2019 05:45 CEST | Update | - |
| article html file updated | 2 May 2019 08:23 CEST | Update | - |
| article html file updated | 18 April 2019 06:10 CEST | Update | - |
| article html file updated | 2 January 2018 11:31 CET | Update | - |
| article html file updated | 15 December 2017 07:56 CET | Original file | - |
| article xml uploaded. | 15 December 2017 07:55 CET | Update | https://www.mdpi.com/2079-9292/6/4/110/xml |
| article xml uploaded. | 15 December 2017 07:55 CET | Update | - |
| article xml uploaded. | 15 December 2017 07:55 CET | Original file | - |
| article pdf uploaded. | 15 December 2017 07:55 CET | Version of Record | https://www.mdpi.com/2079-9292/6/4/110/pdf |
