| article html file updated | 8 February 2020 14:08 CET | Update | https://www.mdpi.com/1422-0067/18/8/1818 |
| article html file updated | 26 September 2019 16:20 CEST | Update | - |
| article html file updated | 3 May 2019 05:48 CEST | Update | - |
| article html file updated | 1 September 2017 05:57 CEST | Update | - |
| article html file updated | 22 August 2017 12:27 CEST | Original file | - |
| article xml uploaded. | 22 August 2017 12:26 CEST | Original file | https://www.mdpi.com/1422-0067/18/8/1818/xml |
| article pdf uploaded. | 22 August 2017 12:26 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/8/1818/pdf |
