| article html file updated | 7 February 2020 10:03 CET | Update | https://www.mdpi.com/1420-3049/21/6/764 |
| article html file updated | 21 September 2019 18:52 CEST | Update | - |
| article html file updated | 5 May 2019 13:11 CEST | Update | - |
| article html file updated | 27 March 2019 07:16 CET | Update | - |
| article html file updated | 12 November 2018 04:27 CET | Update | - |
| article html file updated | 29 June 2016 12:00 CEST | Update | - |
| article html file updated | 14 June 2016 22:36 CEST | Original file | - |
| article xml uploaded. | 11 June 2016 06:14 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/764/xml |
| article pdf uploaded. | 11 June 2016 06:14 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/764/pdf |
