| article html file updated | 8 February 2020 22:30 CET | Update | https://www.mdpi.com/2079-9292/6/4/104 |
| article html file updated | 28 September 2019 19:47 CEST | Update | - |
| article html file updated | 2 May 2019 12:05 CEST | Update | - |
| article html file updated | 18 April 2019 09:42 CEST | Update | - |
| article html file updated | 2 January 2018 11:29 CET | Update | - |
| article html file updated | 28 November 2017 16:05 CET | Original file | - |
| article xml uploaded. | 28 November 2017 16:03 CET | Update | https://www.mdpi.com/2079-9292/6/4/104/xml |
| article xml uploaded. | 28 November 2017 16:03 CET | Original file | - |
| article pdf uploaded. | 28 November 2017 16:03 CET | Version of Record | https://www.mdpi.com/2079-9292/6/4/104/pdf |
