| article html file updated | 6 February 2020 20:19 CET | Update | https://www.mdpi.com/2226-4310/2/3/435 |
| article html file updated | 6 May 2019 16:28 CEST | Update | N/A |
| article html file updated | 26 March 2019 05:55 CET | Update | N/A |
| article html file updated | 3 September 2015 10:17 CEST | Original file | N/A |
| article xml file uploaded | 3 September 2015 10:17 CEST | Original file | https://www.mdpi.com/2226-4310/2/3/435/xml |
| article pdf uploaded. | 3 July 2015 12:32 CEST | Version of Record | https://www.mdpi.com/2226-4310/2/3/435/pdf |
