| article html file updated | 5 February 2020 18:21 CET | Update | https://www.mdpi.com/1422-8599/2011/4/M739 |
| article html file updated | 19 September 2019 06:22 CEST | Update | N/A |
| article html file updated | 8 May 2019 22:40 CEST | Update | N/A |
| article html file updated | 20 March 2019 10:09 CET | Update | N/A |
| article html file updated | 25 September 2017 05:32 CEST | Update | N/A |
| article xml uploaded. | 25 September 2017 05:31 CEST | Original file | https://www.mdpi.com/1422-8599/2011/4/M739/xml |
| article html file updated | 14 December 2016 11:58 CET | Original file | N/A |
