| article html file updated | 6 February 2020 01:16 CET | Update | https://www.mdpi.com/1422-0067/14/4/7089 |
| article html file updated | 8 May 2019 06:49 CEST | Update | N/A |
| article html file updated | 20 March 2019 20:23 CET | Update | N/A |
| article html file updated | 17 June 2015 08:00 CEST | Update | N/A |
| article html file updated | 21 May 2013 09:26 CEST | Update | N/A |
| article xml file uploaded | 21 May 2013 09:26 CEST | Update | https://www.mdpi.com/1422-0067/14/4/7089/xml |
| article html file updated | 6 May 2013 17:31 CEST | Original file | N/A |
| article xml file uploaded | 6 May 2013 17:30 CEST | Original file | N/A |
| article pdf uploaded. | 28 March 2013 10:36 CET | Version of Record | https://www.mdpi.com/1422-0067/14/4/7089/pdf |
