| article html file updated | 7 February 2020 07:56 CET | Update | https://www.mdpi.com/1420-3049/21/5/540 |
| article html file updated | 21 September 2019 16:09 CEST | Update | - |
| article html file updated | 5 May 2019 17:16 CEST | Update | - |
| article html file updated | 27 March 2019 03:16 CET | Update | - |
| article html file updated | 17 September 2018 03:34 CEST | Update | - |
| article html file updated | 26 May 2016 13:29 CEST | Update | - |
| article html file updated | 28 April 2016 13:56 CEST | Original file | - |
| article xml uploaded. | 28 April 2016 13:55 CEST | Original file | https://www.mdpi.com/1420-3049/21/5/540/xml |
| article pdf uploaded. | 28 April 2016 13:55 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/5/540/pdf |
