| article html file updated | 6 February 2020 08:49 CET | Update | https://www.mdpi.com/2072-6643/6/4/1701 |
| article html file updated | 20 September 2019 07:46 CEST | Update | N/A |
| article html file updated | 7 May 2019 15:27 CEST | Update | N/A |
| article html file updated | 21 March 2019 16:03 CET | Update | N/A |
| article html file updated | 20 August 2015 04:23 CEST | Update | N/A |
| article html file updated | 12 May 2014 15:31 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2014 15:31 CEST | Original file | https://www.mdpi.com/2072-6643/6/4/1701/xml |
| article pdf uploaded. | 23 April 2014 15:00 CEST | Version of Record | https://www.mdpi.com/2072-6643/6/4/1701/pdf |
