| article html file updated | 6 February 2020 09:07 CET | Update | https://www.mdpi.com/2079-6374/4/2/150 |
| article html file updated | 7 May 2019 14:49 CEST | Update | - |
| article html file updated | 21 March 2019 16:44 CET | Update | - |
| article html file updated | 20 August 2015 06:11 CEST | Update | - |
| article html file updated | 26 August 2014 04:00 CEST | Original file | - |
| article xml file uploaded | 26 August 2014 04:00 CEST | Original file | https://www.mdpi.com/2079-6374/4/2/150/xml |
| article pdf uploaded. | 8 May 2014 11:47 CEST | Version of Record | https://www.mdpi.com/2079-6374/4/2/150/pdf |
