| article html file updated | 6 February 2020 18:46 CET | Update | https://www.mdpi.com/2076-393X/3/2/408 |
| article html file updated | 6 May 2019 19:44 CEST | Update | - |
| article html file updated | 26 March 2019 02:57 CET | Update | - |
| article html file updated | 8 September 2015 06:05 CEST | Update | - |
| article xml file uploaded | 8 September 2015 06:05 CEST | Update | https://www.mdpi.com/2076-393X/3/2/408/xml |
| article html file updated | 21 August 2015 12:20 CEST | Update | - |
| article html file updated | 2 July 2015 06:38 CEST | Update | - |
| article xml file uploaded | 2 July 2015 06:38 CEST | Update | - |
| article html file updated | 30 June 2015 08:04 CEST | Original file | - |
| article xml file uploaded | 30 June 2015 08:04 CEST | Original file | - |
| article pdf uploaded. | 22 May 2015 09:46 CEST | Updated version of record | https://www.mdpi.com/2076-393X/3/2/408/pdf |
| article pdf uploaded. | 20 May 2015 09:21 CEST | Version of Record | https://www.mdpi.com/2076-393X/3/2/408/pdf-vor |