| article html file updated | 7 February 2020 01:39 CET | Update | https://www.mdpi.com/2076-3417/5/4/1528 |
| article html file updated | 6 May 2019 06:10 CEST | Update | - |
| article html file updated | 26 March 2019 15:32 CET | Original file | - |
| article pdf uploaded. | 15 December 2015 12:38 CET | Updated version of record | https://www.mdpi.com/2076-3417/5/4/1528/pdf |
| article pdf uploaded. | 2 December 2015 13:37 CET | Version of Record | https://www.mdpi.com/2076-3417/5/4/1528/pdf-vor |
| article xml uploaded. | 2 December 2015 13:37 CET | Original file | https://www.mdpi.com/2076-3417/5/4/1528/xml |
