| article html file updated | 8 February 2020 22:21 CET | Update | https://www.mdpi.com/2077-0383/6/12/108 |
| article html file updated | 28 September 2019 18:55 CEST | Update | - |
| article html file updated | 2 May 2019 12:26 CEST | Update | - |
| article html file updated | 18 April 2019 10:02 CEST | Update | - |
| article html file updated | 2 January 2018 18:15 CET | Update | - |
| article html file updated | 27 November 2017 13:05 CET | Original file | - |
| article xml uploaded. | 27 November 2017 13:03 CET | Original file | https://www.mdpi.com/2077-0383/6/12/108/xml |
| article pdf uploaded. | 27 November 2017 13:03 CET | Version of Record | https://www.mdpi.com/2077-0383/6/12/108/pdf |
