| article html file updated | 6 February 2020 17:05 CET | Update | https://www.mdpi.com/2072-6643/7/4/2161 |
| article html file updated | 20 September 2019 19:25 CEST | Update | N/A |
| article html file updated | 6 May 2019 22:56 CEST | Update | N/A |
| article html file updated | 25 March 2019 23:44 CET | Update | N/A |
| article html file updated | 21 August 2015 09:33 CEST | Update | N/A |
| article html file updated | 28 April 2015 08:09 CEST | Original file | N/A |
| article xml file uploaded | 28 April 2015 08:09 CEST | Original file | https://www.mdpi.com/2072-6643/7/4/2161/xml |
| article pdf uploaded. | 27 March 2015 12:26 CET | Version of Record | https://www.mdpi.com/2072-6643/7/4/2161/pdf |
