| article html file updated | 6 February 2020 18:23 CET | Update | https://www.mdpi.com/2304-6732/2/2/459 |
| article html file updated | 6 May 2019 20:33 CEST | Update | N/A |
| article html file updated | 26 March 2019 02:04 CET | Update | N/A |
| article html file updated | 11 November 2015 03:19 CET | Original file | N/A |
| article xml file uploaded | 11 November 2015 03:19 CET | Original file | https://www.mdpi.com/2304-6732/2/2/459/xml |
| article pdf uploaded. | 6 May 2015 14:12 CEST | Version of Record | https://www.mdpi.com/2304-6732/2/2/459/pdf |
