| article html file updated | 6 February 2020 21:21 CET | Update | https://www.mdpi.com/2076-3921/4/3/533 |
| article html file updated | 6 May 2019 14:25 CEST | Update | N/A |
| article html file updated | 26 March 2019 07:55 CET | Update | N/A |
| article html file updated | 14 October 2015 08:44 CEST | Original file | N/A |
| article xml file uploaded | 14 October 2015 08:44 CEST | Original file | https://www.mdpi.com/2076-3921/4/3/533/xml |
| article pdf uploaded. | 3 August 2015 15:19 CEST | Version of Record | https://www.mdpi.com/2076-3921/4/3/533/pdf |
