| article html file updated | 6 February 2020 11:23 CET | Update | https://www.mdpi.com/2304-6732/1/3/220 |
| article html file updated | 7 May 2019 09:56 CEST | Update | - |
| article html file updated | 21 March 2019 22:51 CET | Update | - |
| article html file updated | 20 August 2015 15:01 CEST | Update | - |
| article html file updated | 26 September 2014 09:54 CEST | Original file | - |
| article xml file uploaded | 26 September 2014 09:54 CEST | Original file | https://www.mdpi.com/2304-6732/1/3/220/xml |
| article pdf uploaded. | 13 August 2014 14:51 CEST | Updated version of record | https://www.mdpi.com/2304-6732/1/3/220/pdf |
| article pdf uploaded. | 12 August 2014 09:04 CEST | Version of Record | https://www.mdpi.com/2304-6732/1/3/220/pdf-vor |
