| article html file updated | 7 February 2020 04:32 CET | Update | https://www.mdpi.com/1422-0067/17/2/235 |
| article html file updated | 6 May 2019 00:25 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:40 CET | Original file | N/A |
| article pdf uploaded. | 15 February 2016 08:41 CET | Version of Record | https://www.mdpi.com/1422-0067/17/2/235/pdf |
| article xml uploaded. | 15 February 2016 08:41 CET | Original file | https://www.mdpi.com/1422-0067/17/2/235/xml |
