| article html file updated | 7 February 2020 10:32 CET | Update | https://www.mdpi.com/1420-3049/21/6/809 |
| article html file updated | 21 September 2019 19:31 CEST | Update | N/A |
| article html file updated | 5 May 2019 12:14 CEST | Update | N/A |
| article html file updated | 27 March 2019 08:08 CET | Update | N/A |
| article html file updated | 12 November 2018 04:38 CET | Update | N/A |
| article html file updated | 29 June 2016 12:07 CEST | Update | N/A |
| article html file updated | 22 June 2016 08:04 CEST | Original file | N/A |
| article xml uploaded. | 22 June 2016 08:03 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/809/xml |
| article pdf uploaded. | 22 June 2016 08:03 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/809/pdf |
