| article html file updated | 5 February 2020 11:48 CET | Update | https://www.mdpi.com/1422-8599/2008/1/M561 |
| article html file updated | 9 May 2019 12:39 CEST | Update | - |
| article html file updated | 19 March 2019 17:17 CET | Update | - |
| article html file updated | 22 September 2017 10:25 CEST | Update | - |
| article xml uploaded. | 22 September 2017 10:24 CEST | Original file | https://www.mdpi.com/1422-8599/2008/1/M561/xml |
| article pdf uploaded. | 22 September 2017 10:24 CEST | Version of Record | https://www.mdpi.com/1422-8599/2008/1/M561/pdf |
| article html file updated | 14 December 2016 11:13 CET | Original file | - |
