| article html file updated | 9 February 2020 05:26 CET | Update | https://www.mdpi.com/1422-0067/19/2/457 |
| article html file updated | 30 September 2019 12:11 CEST | Update | - |
| article html file updated | 1 May 2019 21:11 CEST | Update | - |
| article html file updated | 17 April 2019 20:06 CEST | Update | - |
| article html file updated | 28 March 2019 20:43 CET | Update | - |
| article html file updated | 14 March 2018 18:37 CET | Update | - |
| article html file updated | 3 February 2018 11:35 CET | Original file | - |
| article xml uploaded. | 3 February 2018 11:33 CET | Update | https://www.mdpi.com/1422-0067/19/2/457/xml |
| article xml uploaded. | 3 February 2018 11:33 CET | Original file | - |
| article pdf uploaded. | 3 February 2018 11:33 CET | Version of Record | https://www.mdpi.com/1422-0067/19/2/457/pdf |
