| article html file updated | 8 February 2020 23:47 CET | Update | https://www.mdpi.com/1422-0067/18/12/2681 |
| article html file updated | 29 September 2019 03:26 CEST | Update | - |
| article html file updated | 2 May 2019 09:13 CEST | Update | - |
| article html file updated | 18 April 2019 06:57 CEST | Update | - |
| article html file updated | 2 January 2018 09:37 CET | Update | - |
| article html file updated | 11 December 2017 17:36 CET | Original file | - |
| article xml uploaded. | 11 December 2017 17:35 CET | Update | https://www.mdpi.com/1422-0067/18/12/2681/xml |
| article xml uploaded. | 11 December 2017 17:35 CET | Original file | - |
| article pdf uploaded. | 11 December 2017 17:35 CET | Version of Record | https://www.mdpi.com/1422-0067/18/12/2681/pdf |
