| article html file updated | 6 February 2020 08:52 CET | Update | https://www.mdpi.com/2076-3425/4/2/321 |
| article html file updated | 20 September 2019 07:50 CEST | Update | - |
| article html file updated | 7 May 2019 15:21 CEST | Update | - |
| article html file updated | 21 March 2019 16:09 CET | Update | - |
| article html file updated | 20 August 2015 04:34 CEST | Update | - |
| article html file updated | 18 July 2014 03:57 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-3425/4/2/321/xml |
| article supplementary file uploaded. | 25 April 2014 10:39 CEST | - | https://www.mdpi.com/2076-3425/4/2/321#supplementary |
| article pdf uploaded. | 25 April 2014 10:39 CEST | Version of Record | https://www.mdpi.com/2076-3425/4/2/321/pdf |
