| article html file updated | 8 February 2020 04:10 CET | Update | https://www.mdpi.com/1422-0067/18/4/890 |
| article html file updated | 24 September 2019 11:05 CEST | Update | - |
| article html file updated | 4 May 2019 01:08 CEST | Update | - |
| article html file updated | 2 May 2017 06:19 CEST | Update | - |
| article html file updated | 22 April 2017 09:40 CEST | Original file | - |
| article xml uploaded. | 22 April 2017 09:38 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/890/xml |
| article pdf uploaded. | 22 April 2017 09:38 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/890/pdf |
