| article html file updated | 6 February 2020 07:41 CET | Update | https://www.mdpi.com/1422-0067/15/3/3989 |
| article html file updated | 7 May 2019 17:46 CEST | Update | - |
| article html file updated | 21 March 2019 13:22 CET | Update | - |
| article html file updated | 19 August 2015 22:35 CEST | Update | - |
| article html file updated | 8 April 2014 10:44 CEST | Original file | - |
| article xml file uploaded | 8 April 2014 10:43 CEST | Original file | https://www.mdpi.com/1422-0067/15/3/3989/xml |
| article pdf uploaded. | 5 March 2014 08:40 CET | Version of Record | https://www.mdpi.com/1422-0067/15/3/3989/pdf |
