| article html file updated | 6 February 2020 15:22 CET | Update | https://www.mdpi.com/1422-0067/16/2/2446 |
| article html file updated | 7 May 2019 02:06 CEST | Update | - |
| article html file updated | 25 March 2019 20:50 CET | Update | - |
| article html file updated | 21 August 2015 06:17 CEST | Update | - |
| article html file updated | 3 March 2015 07:00 CET | Original file | - |
| article xml file uploaded | 3 March 2015 07:00 CET | Original file | https://www.mdpi.com/1422-0067/16/2/2446/xml |
| article pdf uploaded. | 22 January 2015 11:54 CET | Version of Record | https://www.mdpi.com/1422-0067/16/2/2446/pdf |
