| article html file updated | 9 February 2020 19:09 CET | Update | https://www.mdpi.com/1422-0067/19/6/1581 |
| article html file updated | 3 October 2019 23:53 CEST | Update | - |
| article html file updated | 30 April 2019 16:25 CEST | Update | - |
| article html file updated | 16 April 2019 16:53 CEST | Update | - |
| article html file updated | 30 March 2019 04:53 CET | Update | - |
| article html file updated | 4 July 2018 07:52 CEST | Update | - |
| article html file updated | 26 May 2018 09:41 CEST | Original file | - |
| article pdf uploaded. | 26 May 2018 09:39 CEST | Version of Record | https://www.mdpi.com/1422-0067/19/6/1581/pdf |
| article xml uploaded. | 26 May 2018 09:39 CEST | Update | https://www.mdpi.com/1422-0067/19/6/1581/xml |
| article xml file uploaded | 26 May 2018 09:39 CEST | Original file | - |
