| article html file updated | 6 February 2020 09:03 CET | Update | https://www.mdpi.com/2078-2489/5/2/272 |
| article html file updated | 20 September 2019 08:03 CEST | Update | - |
| article html file updated | 7 May 2019 14:57 CEST | Update | - |
| article html file updated | 21 March 2019 16:34 CET | Update | - |
| article html file updated | 20 August 2015 05:47 CEST | Update | - |
| article html file updated | 11 September 2014 12:14 CEST | Original file | - |
| article xml file uploaded | 11 September 2014 12:14 CEST | Original file | https://www.mdpi.com/2078-2489/5/2/272/xml |
| article pdf uploaded. | 24 June 2014 10:54 CEST | Updated version of record | https://www.mdpi.com/2078-2489/5/2/272/pdf |
| article pdf uploaded. | 6 May 2014 08:36 CEST | Version of Record | https://www.mdpi.com/2078-2489/5/2/272/pdf-vor |
