| article html file updated | 7 February 2020 07:17 CET | Update | https://www.mdpi.com/1422-0067/17/4/561 |
| article html file updated | 5 May 2019 18:35 CEST | Update | - |
| article html file updated | 27 March 2019 01:56 CET | Update | - |
| article html file updated | 28 April 2016 05:18 CEST | Update | - |
| article html file updated | 14 April 2016 13:23 CEST | Original file | - |
| article xml uploaded. | 14 April 2016 13:22 CEST | Update | https://www.mdpi.com/1422-0067/17/4/561/xml |
| article pdf uploaded. | 14 April 2016 13:22 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/4/561/pdf |
