| article html file updated | 6 February 2020 02:47 CET | Update | https://www.mdpi.com/1422-0067/14/7/12970 |
| article html file updated | 8 May 2019 03:42 CEST | Update | N/A |
| article html file updated | 21 March 2019 00:14 CET | Update | N/A |
| article html file updated | 17 June 2015 10:29 CEST | Update | N/A |
| article html file updated | 14 August 2013 09:49 CEST | Original file | N/A |
| article xml file uploaded | 14 August 2013 09:49 CEST | Original file | https://www.mdpi.com/1422-0067/14/7/12970/xml |
| article pdf uploaded. | 24 June 2013 17:14 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/7/12970/pdf |
