| article html file updated | 8 February 2020 14:56 CET | Update | https://www.mdpi.com/1422-0067/18/9/1875 |
| article html file updated | 3 May 2019 04:19 CEST | Update | - |
| article html file updated | 30 September 2017 12:10 CEST | Update | - |
| article html file updated | 31 August 2017 04:54 CEST | Original file | - |
| article xml uploaded. | 31 August 2017 04:52 CEST | Update | https://www.mdpi.com/1422-0067/18/9/1875/xml |
| article xml uploaded. | 31 August 2017 04:52 CEST | Original file | - |
| article pdf uploaded. | 31 August 2017 04:52 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/9/1875/pdf |
