| article html file updated | 7 February 2020 06:18 CET | Update | https://www.mdpi.com/1422-0067/17/4/433 |
| article html file updated | 5 May 2019 20:38 CEST | Update | - |
| article html file updated | 27 March 2019 00:09 CET | Update | - |
| article html file updated | 28 April 2016 04:38 CEST | Original file | - |
| article xml uploaded. | 23 March 2016 11:19 CET | Original file | https://www.mdpi.com/1422-0067/17/4/433/xml |
| article pdf uploaded. | 23 March 2016 11:19 CET | Version of Record | https://www.mdpi.com/1422-0067/17/4/433/pdf |
