| article html file updated | 8 February 2020 09:54 CET | Update | https://www.mdpi.com/1422-0067/18/7/1421 |
| article html file updated | 25 September 2019 17:12 CEST | Update | - |
| article html file updated | 3 May 2019 14:24 CEST | Update | - |
| article html file updated | 31 July 2017 07:59 CEST | Update | - |
| article html file updated | 3 July 2017 11:17 CEST | Original file | - |
| article xml uploaded. | 3 July 2017 11:15 CEST | Original file | https://www.mdpi.com/1422-0067/18/7/1421/xml |
| article pdf uploaded. | 3 July 2017 11:15 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/7/1421/pdf |
