| article html file updated | 6 February 2020 12:40 CET | Update | https://www.mdpi.com/2304-6732/1/4/303 |
| article html file updated | 7 May 2019 07:27 CEST | Update | N/A |
| article html file updated | 22 March 2019 02:07 CET | Update | N/A |
| article html file updated | 20 August 2015 22:11 CEST | Update | N/A |
| article html file updated | 24 October 2014 07:44 CEST | Original file | N/A |
| article xml file uploaded | 24 October 2014 07:44 CEST | Original file | https://www.mdpi.com/2304-6732/1/4/303/xml |
| article pdf uploaded. | 3 October 2014 09:38 CEST | Version of Record | https://www.mdpi.com/2304-6732/1/4/303/pdf |
