| article html file updated | 6 February 2020 09:05 CET | Update | https://www.mdpi.com/2076-3921/3/2/358 |
| article html file updated | 7 May 2019 14:53 CEST | Update | N/A |
| article html file updated | 21 March 2019 16:40 CET | Update | N/A |
| article html file updated | 20 August 2015 06:00 CEST | Update | N/A |
| article html file updated | 24 June 2014 12:01 CEST | Original file | N/A |
| article xml file uploaded | 24 June 2014 12:01 CEST | Original file | https://www.mdpi.com/2076-3921/3/2/358/xml |
| article pdf uploaded. | 7 May 2014 15:41 CEST | Updated version of record | https://www.mdpi.com/2076-3921/3/2/358/pdf |
| article pdf uploaded. | 7 May 2014 09:07 CEST | Version of Record | https://www.mdpi.com/2076-3921/3/2/358/pdf-vor |
