| article html file updated | 8 February 2020 23:25 CET | Update | https://www.mdpi.com/2079-9292/6/4/107 |
| article html file updated | 29 September 2019 01:21 CEST | Update | - |
| article html file updated | 2 May 2019 10:03 CEST | Update | - |
| article html file updated | 18 April 2019 07:42 CEST | Update | - |
| article html file updated | 2 January 2018 11:30 CET | Update | - |
| article html file updated | 7 December 2017 12:20 CET | Original file | - |
| article xml uploaded. | 7 December 2017 12:19 CET | Update | https://www.mdpi.com/2079-9292/6/4/107/xml |
| article xml uploaded. | 7 December 2017 12:19 CET | Original file | - |
| article pdf uploaded. | 7 December 2017 12:19 CET | Version of Record | https://www.mdpi.com/2079-9292/6/4/107/pdf |
