| article html file updated | 7 February 2020 08:07 CET | Update | https://www.mdpi.com/1422-0067/17/5/661 |
| article html file updated | 5 May 2019 16:54 CEST | Update | - |
| article html file updated | 27 March 2019 03:37 CET | Update | - |
| article html file updated | 26 May 2016 11:51 CEST | Update | - |
| article html file updated | 3 May 2016 13:10 CEST | Original file | - |
| article xml uploaded. | 3 May 2016 13:09 CEST | Update | https://www.mdpi.com/1422-0067/17/5/661/xml |
| article pdf uploaded. | 3 May 2016 13:09 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/5/661/pdf |
