| article html file updated | 9 February 2020 04:06 CET | Update | https://www.mdpi.com/1422-0067/19/2/331 |
| article html file updated | 30 September 2019 04:04 CEST | Update | - |
| article html file updated | 2 May 2019 00:03 CEST | Update | - |
| article html file updated | 17 April 2019 22:34 CEST | Update | - |
| article html file updated | 28 March 2019 17:51 CET | Update | - |
| article html file updated | 14 March 2018 18:06 CET | Update | - |
| article html file updated | 24 January 2018 03:15 CET | Original file | - |
| article xml uploaded. | 24 January 2018 03:13 CET | Update | https://www.mdpi.com/1422-0067/19/2/331/xml |
| article xml uploaded. | 24 January 2018 03:13 CET | Update | - |
| article xml uploaded. | 24 January 2018 03:13 CET | Original file | - |
| article pdf uploaded. | 24 January 2018 03:13 CET | Version of Record | https://www.mdpi.com/1422-0067/19/2/331/pdf |
