| article html file updated | 6 February 2020 04:51 CET | Update | https://www.mdpi.com/1422-8599/2013/4/M809 |
| article html file updated | 7 May 2019 23:25 CEST | Update | - |
| article html file updated | 21 March 2019 05:50 CET | Update | - |
| article html file updated | 21 September 2017 08:33 CEST | Update | - |
| article xml uploaded. | 21 September 2017 08:32 CEST | Update | https://www.mdpi.com/1422-8599/2013/4/M809/xml |
| article html file updated | 21 September 2017 06:16 CEST | Update | - |
| article xml uploaded. | 21 September 2017 06:15 CEST | Original file | - |
| article html file updated | 15 December 2016 02:21 CET | Original file | - |
| article supplementary file uploaded. | 14 October 2013 11:45 CEST | - | https://www.mdpi.com/1422-8599/2013/4/M809#supplementary |
| article pdf uploaded. | 14 October 2013 11:45 CEST | Version of Record | https://www.mdpi.com/1422-8599/2013/4/M809/pdf |
