| article html file updated | 7 February 2020 10:25 CET | Update | https://www.mdpi.com/1420-3049/21/6/671 |
| article html file updated | 21 September 2019 19:20 CEST | Update | - |
| article html file updated | 5 May 2019 12:29 CEST | Update | - |
| article html file updated | 27 March 2019 07:55 CET | Update | - |
| article html file updated | 12 November 2018 03:57 CET | Update | - |
| article html file updated | 29 June 2016 11:48 CEST | Update | - |
| article html file updated | 21 June 2016 10:56 CEST | Original file | - |
| article xml uploaded. | 21 June 2016 10:55 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/671/xml |
| article pdf uploaded. | 21 June 2016 10:55 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/671/pdf |
