| article html file updated | 6 February 2020 09:00 CET | Update | https://www.mdpi.com/1422-0067/15/5/7639 |
| article html file updated | 7 May 2019 15:03 CEST | Update | - |
| article html file updated | 21 March 2019 16:29 CET | Update | - |
| article html file updated | 20 August 2015 05:32 CEST | Update | - |
| article html file updated | 16 June 2014 09:57 CEST | Original file | - |
| article xml file uploaded | 16 June 2014 09:57 CEST | Original file | https://www.mdpi.com/1422-0067/15/5/7639/xml |
| article pdf uploaded. | 5 May 2014 08:58 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/5/7639/pdf |
