| article html file updated | 7 February 2020 05:07 CET | Update | https://www.mdpi.com/1420-3049/21/3/272 |
| article html file updated | 21 September 2019 12:07 CEST | Update | - |
| article html file updated | 5 May 2019 23:04 CEST | Update | - |
| article html file updated | 26 March 2019 21:55 CET | Update | - |
| article html file updated | 17 September 2018 03:00 CEST | Update | - |
| article html file updated | 31 March 2016 02:47 CEST | Original file | - |
| article pdf uploaded. | 26 February 2016 13:52 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/272/pdf |
| article xml uploaded. | 26 February 2016 13:52 CET | Original file | https://www.mdpi.com/1420-3049/21/3/272/xml |
