| article html file updated | 11 February 2020 17:16 CET | Update | https://www.mdpi.com/1422-0067/20/4/909 |
| article html file updated | 15 October 2019 07:14 CEST | Update | - |
| article html file updated | 29 September 2019 08:42 CEST | Update | - |
| article html file updated | 26 April 2019 14:12 CEST | Update | - |
| article html file updated | 12 April 2019 09:47 CEST | Update | - |
| article html file updated | 3 April 2019 23:45 CEST | Update | - |
| article html file updated | 1 March 2019 16:31 CET | Update | - |
| article html file updated | 1 March 2019 06:30 CET | Update | - |
| article html file updated | 20 February 2019 06:43 CET | Original file | - |
| article pdf uploaded. | 20 February 2019 06:41 CET | Version of Record | https://www.mdpi.com/1422-0067/20/4/909/pdf |
| article xml uploaded. | 20 February 2019 06:41 CET | Update | https://www.mdpi.com/1422-0067/20/4/909/xml |
| article xml file uploaded | 20 February 2019 06:41 CET | Original file | - |
