| article html file updated | 9 February 2020 06:15 CET | Update | https://www.mdpi.com/1422-0067/19/2/539 |
| article html file updated | 30 September 2019 17:06 CEST | Update | - |
| article html file updated | 1 May 2019 19:17 CEST | Update | - |
| article html file updated | 17 April 2019 18:29 CEST | Update | - |
| article html file updated | 28 March 2019 22:31 CET | Update | - |
| article html file updated | 14 March 2018 19:10 CET | Update | - |
| article html file updated | 11 February 2018 04:25 CET | Original file | - |
| article xml uploaded. | 11 February 2018 04:24 CET | Update | https://www.mdpi.com/1422-0067/19/2/539/xml |
| article xml uploaded. | 11 February 2018 04:24 CET | Original file | - |
| article pdf uploaded. | 11 February 2018 04:24 CET | Version of Record | https://www.mdpi.com/1422-0067/19/2/539/pdf |
