| article html file updated | 7 February 2020 07:38 CET | Update | https://www.mdpi.com/1420-3049/21/4/507 |
| article html file updated | 21 September 2019 15:43 CEST | Update | - |
| article html file updated | 5 May 2019 17:53 CEST | Update | - |
| article html file updated | 27 March 2019 02:39 CET | Update | - |
| article html file updated | 17 September 2018 04:10 CEST | Update | - |
| article html file updated | 28 April 2016 12:00 CEST | Update | - |
| article html file updated | 21 April 2016 14:17 CEST | Original file | - |
| article xml uploaded. | 21 April 2016 14:16 CEST | Update | https://www.mdpi.com/1420-3049/21/4/507/xml |
| article pdf uploaded. | 21 April 2016 14:16 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/4/507/pdf |
