| article html file updated | 6 February 2020 00:29 CET | Update | https://www.mdpi.com/1660-4601/10/2/660 |
| article html file updated | 8 May 2019 08:35 CEST | Update | N/A |
| article html file updated | 20 March 2019 18:29 CET | Original file | N/A |
| article pdf uploaded. | 7 February 2013 13:29 CET | Version of Record | https://www.mdpi.com/1660-4601/10/2/660/pdf |
