| article html file updated | 8 February 2020 03:58 CET | Update | https://www.mdpi.com/1422-0067/18/4/869 |
| article html file updated | 24 September 2019 10:04 CEST | Update | - |
| article html file updated | 4 May 2019 01:29 CEST | Update | - |
| article html file updated | 2 May 2017 06:16 CEST | Update | - |
| article html file updated | 20 April 2017 10:52 CEST | Original file | - |
| article xml uploaded. | 20 April 2017 10:51 CEST | Update | https://www.mdpi.com/1422-0067/18/4/869/xml |
| article pdf uploaded. | 20 April 2017 10:51 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/869/pdf |
