| article html file updated | 8 February 2020 07:45 CET | Update | https://www.mdpi.com/1422-0067/18/6/1227 |
| article html file updated | 25 September 2019 05:42 CEST | Update | - |
| article html file updated | 3 May 2019 18:27 CEST | Update | - |
| article html file updated | 28 June 2017 13:33 CEST | Update | - |
| article html file updated | 9 June 2017 03:38 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 03:36 CEST | Original file | https://www.mdpi.com/1422-0067/18/6/1227/xml |
| article pdf uploaded. | 9 June 2017 03:36 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/6/1227/pdf |
