| article html file updated | 7 February 2020 21:10 CET | Update | https://www.mdpi.com/1660-4601/14/1/60 |
| article html file updated | 22 September 2019 19:55 CEST | Update | - |
| article html file updated | 4 May 2019 15:57 CEST | Update | - |
| article html file updated | 7 February 2017 10:53 CET | Update | - |
| article html file updated | 11 January 2017 05:16 CET | Original file | - |
| article xml uploaded. | 11 January 2017 05:15 CET | Original file | https://www.mdpi.com/1660-4601/14/1/60/xml |
| article pdf uploaded. | 11 January 2017 05:15 CET | Version of Record | https://www.mdpi.com/1660-4601/14/1/60/pdf |
