| article html file updated | 7 February 2020 22:38 CET | Update | https://www.mdpi.com/1422-0067/18/2/319 |
| article html file updated | 23 September 2019 03:39 CEST | Update | - |
| article html file updated | 4 May 2019 12:47 CEST | Update | - |
| article html file updated | 2 March 2017 09:57 CET | Update | - |
| article html file updated | 4 February 2017 05:29 CET | Original file | - |
| article xml uploaded. | 4 February 2017 05:23 CET | Update | https://www.mdpi.com/1422-0067/18/2/319/xml |
| article xml uploaded. | 4 February 2017 05:23 CET | Original file | - |
| article pdf uploaded. | 4 February 2017 05:23 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/319/pdf |
