| article html file updated | 7 February 2020 22:07 CET | Update | https://www.mdpi.com/1422-0067/18/2/236 |
| article html file updated | 23 September 2019 00:55 CEST | Update | - |
| article html file updated | 4 May 2019 13:49 CEST | Update | - |
| article html file updated | 2 March 2017 09:43 CET | Update | - |
| article html file updated | 24 January 2017 08:46 CET | Original file | - |
| article xml uploaded. | 24 January 2017 08:45 CET | Original file | https://www.mdpi.com/1422-0067/18/2/236/xml |
| article pdf uploaded. | 24 January 2017 08:45 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/236/pdf |
