| article html file updated | 5 February 2020 09:04 CET | Update | https://www.mdpi.com/1420-3049/12/6/1220 |
| article html file updated | 18 September 2019 13:21 CEST | Update | - |
| article html file updated | 9 May 2019 18:04 CEST | Update | - |
| article html file updated | 25 March 2019 04:32 CET | Update | - |
| article html file updated | 22 March 2019 04:47 CET | Update | - |
| article html file updated | 19 March 2019 11:14 CET | Update | - |
| article html file updated | 19 March 2019 10:55 CET | Update | - |
| article html file updated | 19 March 2019 09:48 CET | Update | - |
| article html file updated | 10 September 2018 09:34 CEST | Update | - |
| article html file updated | 14 February 2017 12:11 CET | Original file | - |