| article html file updated | 6 February 2020 14:53 CET | Update | https://www.mdpi.com/2072-6643/7/1/209 |
| article html file updated | 7 May 2019 03:06 CEST | Update | N/A |
| article html file updated | 25 March 2019 19:58 CET | Update | N/A |
| article html file updated | 21 August 2015 05:08 CEST | Update | N/A |
| article html file updated | 23 January 2015 11:54 CET | Original file | N/A |
| article xml file uploaded | 23 January 2015 11:54 CET | Original file | https://www.mdpi.com/2072-6643/7/1/209/xml |
| article pdf uploaded. | 31 December 2014 09:48 CET | Version of Record | https://www.mdpi.com/2072-6643/7/1/209/pdf |
