| article html file updated | 7 February 2020 09:20 CET | Update | https://www.mdpi.com/1420-3049/21/6/687 |
| article html file updated | 21 September 2019 17:55 CEST | Update | - |
| article html file updated | 5 May 2019 14:36 CEST | Update | - |
| article html file updated | 27 March 2019 05:50 CET | Update | - |
| article html file updated | 12 November 2018 04:00 CET | Update | - |
| article html file updated | 29 June 2016 11:50 CEST | Update | - |
| article html file updated | 26 May 2016 13:12 CEST | Original file | - |
| article xml uploaded. | 26 May 2016 11:44 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/687/xml |
| article pdf uploaded. | 26 May 2016 11:44 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/687/pdf |
