| article html file updated | 7 February 2020 08:10 CET | Update | https://www.mdpi.com/1422-0067/17/5/669 |
| article html file updated | 5 May 2019 16:48 CEST | Update | - |
| article html file updated | 27 March 2019 03:43 CET | Update | - |
| article html file updated | 26 May 2016 11:54 CEST | Update | - |
| article html file updated | 4 May 2016 12:19 CEST | Original file | - |
| article xml uploaded. | 4 May 2016 12:17 CEST | Original file | https://www.mdpi.com/1422-0067/17/5/669/xml |
| article pdf uploaded. | 4 May 2016 12:17 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/5/669/pdf |
