| article html file updated | 8 February 2020 23:03 CET | Update | https://www.mdpi.com/2220-9964/6/12/398 |
| article html file updated | 28 September 2019 23:23 CEST | Update | - |
| article html file updated | 2 May 2019 10:49 CEST | Update | - |
| article html file updated | 18 April 2019 08:26 CEST | Update | - |
| article html file updated | 2 January 2018 18:47 CET | Update | - |
| article html file updated | 4 December 2017 12:31 CET | Original file | - |
| article xml uploaded. | 4 December 2017 12:30 CET | Update | https://www.mdpi.com/2220-9964/6/12/398/xml |
| article xml uploaded. | 4 December 2017 12:30 CET | Original file | - |
| article pdf uploaded. | 4 December 2017 12:30 CET | Version of Record | https://www.mdpi.com/2220-9964/6/12/398/pdf |
