| article html file updated | 8 February 2020 02:51 CET | Update | https://www.mdpi.com/1422-0067/18/4/766 |
| article html file updated | 24 September 2019 03:46 CEST | Update | - |
| article html file updated | 4 May 2019 03:41 CEST | Update | - |
| article html file updated | 2 May 2017 05:58 CEST | Update | - |
| article html file updated | 4 April 2017 15:36 CEST | Original file | - |
| article xml uploaded. | 4 April 2017 15:35 CEST | Update | https://www.mdpi.com/1422-0067/18/4/766/xml |
| article pdf uploaded. | 4 April 2017 15:35 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/766/pdf |
