| article html file updated | 6 February 2020 06:50 CET | Update | https://www.mdpi.com/1422-0067/15/1/1538 |
| article html file updated | 7 May 2019 19:34 CEST | Update | - |
| article html file updated | 21 March 2019 11:18 CET | Update | - |
| article html file updated | 19 August 2015 18:14 CEST | Update | - |
| article html file updated | 3 February 2014 11:04 CET | Original file | - |
| article xml file uploaded | 3 February 2014 11:04 CET | Original file | https://www.mdpi.com/1422-0067/15/1/1538/xml |
| article pdf uploaded. | 21 January 2014 11:40 CET | Version of Record | https://www.mdpi.com/1422-0067/15/1/1538/pdf |
