| article html file updated | 7 February 2020 07:21 CET | Update | https://www.mdpi.com/1422-0067/17/4/569 |
| article html file updated | 5 May 2019 18:28 CEST | Update | - |
| article html file updated | 27 March 2019 02:03 CET | Update | - |
| article html file updated | 28 April 2016 05:20 CEST | Update | - |
| article html file updated | 15 April 2016 13:25 CEST | Original file | - |
| article xml uploaded. | 15 April 2016 13:23 CEST | Original file | https://www.mdpi.com/1422-0067/17/4/569/xml |
| article pdf uploaded. | 15 April 2016 13:23 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/4/569/pdf |
