| article html file updated | 7 February 2020 04:34 CET | Update | https://www.mdpi.com/1660-4601/13/2/218 |
| article html file updated | 21 September 2019 11:20 CEST | Update | - |
| article html file updated | 6 May 2019 00:19 CEST | Update | - |
| article html file updated | 26 March 2019 20:45 CET | Original file | - |
| article pdf uploaded. | 15 February 2016 11:15 CET | Version of Record | https://www.mdpi.com/1660-4601/13/2/218/pdf |
| article xml uploaded. | 15 February 2016 11:15 CET | Original file | https://www.mdpi.com/1660-4601/13/2/218/xml |
