| article html file updated | 8 February 2020 04:17 CET | Update | https://www.mdpi.com/1422-0067/18/4/898 |
| article html file updated | 24 September 2019 11:45 CEST | Update | - |
| article html file updated | 4 May 2019 00:55 CEST | Update | - |
| article html file updated | 2 May 2017 06:21 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 15:16 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/898/xml |
| article pdf uploaded. | 24 April 2017 15:16 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/898/pdf |
