| article html file updated | 8 February 2020 03:47 CET | Update | https://www.mdpi.com/1422-0067/18/4/847 |
| article html file updated | 24 September 2019 08:57 CEST | Update | - |
| article html file updated | 4 May 2019 01:50 CEST | Update | - |
| article html file updated | 2 May 2017 06:13 CEST | Update | - |
| article html file updated | 18 April 2017 06:29 CEST | Original file | - |
| article xml uploaded. | 18 April 2017 06:28 CEST | Update | https://www.mdpi.com/1422-0067/18/4/847/xml |
| article pdf uploaded. | 18 April 2017 06:28 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/847/pdf |
