| article html file updated | 6 February 2020 15:19 CET | Update | https://www.mdpi.com/2072-6651/7/1/201 |
| article html file updated | 7 May 2019 02:11 CEST | Update | - |
| article html file updated | 25 March 2019 20:45 CET | Update | - |
| article html file updated | 21 August 2015 06:10 CEST | Update | - |
| article html file updated | 23 January 2015 11:54 CET | Original file | - |
| article xml file uploaded | 23 January 2015 11:54 CET | Original file | https://www.mdpi.com/2072-6651/7/1/201/xml |
| article pdf uploaded. | 20 January 2015 12:22 CET | Version of Record | https://www.mdpi.com/2072-6651/7/1/201/pdf |
