| article html file updated | 6 February 2020 14:53 CET | Update | https://www.mdpi.com/2072-6643/7/1/253 |
| article html file updated | 20 September 2019 16:34 CEST | Update | - |
| article html file updated | 7 May 2019 03:05 CEST | Update | - |
| article html file updated | 25 March 2019 19:59 CET | Update | - |
| article html file updated | 21 August 2015 05:09 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/2072-6643/7/1/253/xml |
| article pdf uploaded. | 31 December 2014 10:50 CET | Version of Record | https://www.mdpi.com/2072-6643/7/1/253/pdf |
