| article html file updated | 8 February 2020 02:59 CET | Update | https://www.mdpi.com/1422-0067/18/4/765 |
| article html file updated | 24 September 2019 04:27 CEST | Update | - |
| article html file updated | 4 May 2019 03:24 CEST | Update | - |
| article html file updated | 2 May 2017 05:57 CEST | Update | - |
| article html file updated | 6 April 2017 07:49 CEST | Original file | - |
| article xml uploaded. | 6 April 2017 07:48 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/765/xml |
| article pdf uploaded. | 6 April 2017 07:48 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/765/pdf |
