| article html file updated | 7 February 2020 02:07 CET | Update | https://www.mdpi.com/2226-4787/3/4/364 |
| article html file updated | 6 May 2019 05:11 CEST | Update | - |
| article html file updated | 26 March 2019 16:18 CET | Original file | - |
| article pdf uploaded. | 14 December 2015 09:17 CET | Updated version of record | https://www.mdpi.com/2226-4787/3/4/364/pdf |
| article pdf uploaded. | 11 December 2015 12:35 CET | Version of Record | https://www.mdpi.com/2226-4787/3/4/364/pdf-vor |
| article xml uploaded. | 11 December 2015 12:35 CET | Original file | https://www.mdpi.com/2226-4787/3/4/364/xml |
