| article html file updated | 6 February 2020 08:59 CET | Update | https://www.mdpi.com/1422-0067/15/5/7539 |
| article html file updated | 7 May 2019 15:05 CEST | Update | - |
| article html file updated | 21 March 2019 16:27 CET | Update | - |
| article html file updated | 20 August 2015 05:25 CEST | Update | - |
| article html file updated | 16 June 2014 10:18 CEST | Original file | - |
| article xml file uploaded | 16 June 2014 10:18 CEST | Original file | https://www.mdpi.com/1422-0067/15/5/7539/xml |
| article pdf uploaded. | 2 May 2014 13:36 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/5/7539/pdf |
