| article html file updated | 7 February 2020 10:02 CET | Update | https://www.mdpi.com/1420-3049/21/6/755 |
| article html file updated | 21 September 2019 18:51 CEST | Update | - |
| article html file updated | 5 May 2019 13:12 CEST | Update | - |
| article html file updated | 27 March 2019 07:14 CET | Update | - |
| article html file updated | 12 November 2018 04:25 CET | Update | - |
| article html file updated | 29 June 2016 11:59 CEST | Update | - |
| article html file updated | 10 June 2016 12:46 CEST | Original file | - |
| article xml uploaded. | 10 June 2016 12:45 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/755/xml |
| article pdf uploaded. | 10 June 2016 12:45 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/755/pdf |
