| article html file updated | 6 February 2020 01:34 CET | Update | https://www.mdpi.com/1422-0067/14/4/8491 |
| article html file updated | 8 May 2019 06:10 CEST | Update | - |
| article html file updated | 20 March 2019 21:08 CET | Update | - |
| article html file updated | 17 June 2015 08:31 CEST | Update | - |
| article html file updated | 21 May 2013 09:33 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:33 CEST | Update | https://www.mdpi.com/1422-0067/14/4/8491/xml |
| article html file updated | 6 May 2013 18:28 CEST | Original file | - |
| article xml file uploaded | 6 May 2013 18:28 CEST | Original file | - |
| article pdf uploaded. | 17 April 2013 11:21 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/4/8491/pdf |
