| article html file updated | 7 February 2020 09:21 CET | Update | https://www.mdpi.com/1420-3049/21/6/688 |
| article html file updated | 21 September 2019 17:57 CEST | Update | - |
| article html file updated | 5 May 2019 14:33 CEST | Update | - |
| article html file updated | 27 March 2019 05:53 CET | Update | - |
| article html file updated | 12 November 2018 04:01 CET | Update | - |
| article html file updated | 29 June 2016 11:51 CEST | Update | - |
| article html file updated | 26 May 2016 14:53 CEST | Original file | - |
| article xml uploaded. | 26 May 2016 14:52 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/688/xml |
| article pdf uploaded. | 26 May 2016 14:52 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/688/pdf |
