| article html file updated | 6 February 2020 01:34 CET | Update | https://www.mdpi.com/1422-0067/14/4/8517 |
| article html file updated | 8 May 2019 06:10 CEST | Update | - |
| article html file updated | 20 March 2019 21:09 CET | Update | - |
| article html file updated | 17 June 2015 08:32 CEST | Update | - |
| article html file updated | 21 May 2013 09:34 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:33 CEST | Update | https://www.mdpi.com/1422-0067/14/4/8517/xml |
| article html file updated | 6 May 2013 18:30 CEST | Original file | - |
| article xml file uploaded | 6 May 2013 18:29 CEST | Original file | - |
| article pdf uploaded. | 18 April 2013 15:22 CEST | Updated version of record | https://www.mdpi.com/1422-0067/14/4/8517/pdf |
| article pdf uploaded. | 17 April 2013 11:36 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/4/8517/pdf-vor |
