| article html file updated | 8 February 2020 03:53 CET | Update | https://www.mdpi.com/1422-0067/18/4/859 |
| article html file updated | 24 September 2019 09:31 CEST | Update | - |
| article html file updated | 4 May 2019 01:39 CEST | Update | - |
| article html file updated | 2 May 2017 06:15 CEST | Update | - |
| article html file updated | 19 April 2017 11:58 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 11:56 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/859/xml |
| article pdf uploaded. | 19 April 2017 11:56 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/859/pdf |
