| article html file updated | 6 February 2020 01:31 CET | Update | https://www.mdpi.com/1422-0067/14/4/8271 |
| article html file updated | 8 May 2019 06:16 CEST | Update | - |
| article html file updated | 20 March 2019 21:01 CET | Update | - |
| article html file updated | 17 June 2015 08:26 CEST | Update | - |
| article html file updated | 21 May 2013 09:32 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:32 CEST | Update | https://www.mdpi.com/1422-0067/14/4/8271/xml |
| article html file updated | 6 May 2013 18:20 CEST | Original file | - |
| article xml file uploaded | 6 May 2013 18:19 CEST | Original file | - |
| article pdf uploaded. | 15 April 2013 11:28 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/4/8271/pdf |
