| article html file updated | 8 February 2020 03:24 CET | Update | https://www.mdpi.com/1422-0067/18/4/807 |
| article html file updated | 24 September 2019 06:43 CEST | Update | - |
| article html file updated | 4 May 2019 02:33 CEST | Update | - |
| article html file updated | 2 May 2017 06:04 CEST | Update | - |
| article html file updated | 12 April 2017 11:01 CEST | Original file | - |
| article xml uploaded. | 12 April 2017 11:00 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/807/xml |
| article pdf uploaded. | 12 April 2017 11:00 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/807/pdf |
