| article html file updated | 7 February 2020 04:06 CET | Update | https://www.mdpi.com/1420-3049/21/2/172 |
| article html file updated | 21 September 2019 10:43 CEST | Update | - |
| article html file updated | 6 May 2019 01:19 CEST | Update | - |
| article html file updated | 26 March 2019 19:46 CET | Update | - |
| article html file updated | 17 September 2018 03:01 CEST | Original file | - |
| article pdf uploaded. | 30 January 2016 04:09 CET | Version of Record | https://www.mdpi.com/1420-3049/21/2/172/pdf |
| article xml uploaded. | 30 January 2016 04:09 CET | Original file | https://www.mdpi.com/1420-3049/21/2/172/xml |
