| article html file updated | 6 February 2020 07:08 CET | Update | https://www.mdpi.com/1422-0067/15/2/2289 |
| article html file updated | 7 May 2019 18:55 CEST | Update | - |
| article html file updated | 21 March 2019 12:01 CET | Update | - |
| article html file updated | 19 August 2015 19:39 CEST | Update | - |
| article html file updated | 20 March 2014 09:54 CET | Original file | - |
| article xml file uploaded | 20 March 2014 09:54 CET | Original file | https://www.mdpi.com/1422-0067/15/2/2289/xml |
| article pdf uploaded. | 6 February 2014 11:03 CET | Version of Record | https://www.mdpi.com/1422-0067/15/2/2289/pdf |
