| article html file updated | 8 February 2020 07:30 CET | Update | https://www.mdpi.com/1660-4601/14/6/601 |
| article html file updated | 25 September 2019 04:20 CEST | Update | - |
| article html file updated | 3 May 2019 18:55 CEST | Update | - |
| article html file updated | 28 June 2017 13:11 CEST | Update | - |
| article html file updated | 5 June 2017 11:35 CEST | Original file | - |
| article xml uploaded. | 5 June 2017 11:33 CEST | Original file | https://www.mdpi.com/1660-4601/14/6/601/xml |
| article pdf uploaded. | 5 June 2017 11:33 CEST | Version of Record | https://www.mdpi.com/1660-4601/14/6/601/pdf |
