| article html file updated | 6 February 2020 01:29 CET | Update | https://www.mdpi.com/1660-4601/10/4/1489 |
| article html file updated | 8 May 2019 06:20 CEST | Update | - |
| article html file updated | 20 March 2019 20:55 CET | Update | - |
| article html file updated | 17 June 2015 08:22 CEST | Original file | - |
| article pdf uploaded. | 15 April 2013 16:36 CEST | Updated version of record | https://www.mdpi.com/1660-4601/10/4/1489/pdf |
| article pdf uploaded. | 11 April 2013 15:06 CEST | Version of Record | https://www.mdpi.com/1660-4601/10/4/1489/pdf-vor |
