| article html file updated | 7 February 2020 10:09 CET | Update | https://www.mdpi.com/1420-3049/21/6/774 |
| article html file updated | 21 September 2019 19:01 CEST | Update | - |
| article html file updated | 5 May 2019 12:59 CEST | Update | - |
| article html file updated | 27 March 2019 07:27 CET | Update | - |
| article html file updated | 12 November 2018 04:30 CET | Update | - |
| article html file updated | 29 June 2016 12:02 CEST | Update | - |
| article html file updated | 28 June 2016 03:22 CEST | Original file | - |
| article xml uploaded. | 28 June 2016 03:20 CEST | Update | https://www.mdpi.com/1420-3049/21/6/774/xml |
| article pdf uploaded. | 14 June 2016 15:39 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/774/pdf |
