| article html file updated | 9 February 2020 06:00 CET | Update | https://www.mdpi.com/1422-0067/19/2/520 |
| article html file updated | 30 September 2019 15:42 CEST | Update | - |
| article html file updated | 1 May 2019 19:51 CEST | Update | - |
| article html file updated | 17 April 2019 18:58 CEST | Update | - |
| article html file updated | 28 March 2019 22:00 CET | Update | - |
| article html file updated | 14 March 2018 19:00 CET | Update | - |
| article html file updated | 8 February 2018 16:41 CET | Original file | - |
| article xml uploaded. | 8 February 2018 16:39 CET | Update | https://www.mdpi.com/1422-0067/19/2/520/xml |
| article xml uploaded. | 8 February 2018 16:39 CET | Original file | - |
| article pdf uploaded. | 8 February 2018 16:39 CET | Version of Record | https://www.mdpi.com/1422-0067/19/2/520/pdf |
