| article html file updated | 7 February 2020 04:43 CET | Update | https://www.mdpi.com/1660-4601/13/2/227 |
| article html file updated | 5 May 2019 23:58 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:04 CET | Update | N/A |
| article html file updated | 13 October 2016 04:56 CEST | Original file | N/A |
| article pdf uploaded. | 22 February 2016 08:48 CET | Version of Record | https://www.mdpi.com/1660-4601/13/2/227/pdf |
| article xml uploaded. | 22 February 2016 08:48 CET | Original file | https://www.mdpi.com/1660-4601/13/2/227/xml |
