| article html file updated | 5 February 2020 12:00 CET | Update | https://www.mdpi.com/1422-8599/2005/4/M436 |
| article html file updated | 18 September 2019 17:26 CEST | Update | - |
| article html file updated | 9 May 2019 12:05 CEST | Update | - |
| article html file updated | 19 March 2019 17:51 CET | Update | - |
| article html file updated | 22 September 2017 16:29 CEST | Update | - |
| article xml uploaded. | 22 September 2017 16:28 CEST | Update | https://www.mdpi.com/1422-8599/2005/4/M436/xml |
| article xml uploaded. | 22 September 2017 16:16 CEST | Original file | - |
| article html file updated | 14 December 2016 10:13 CET | Original file | - |
