| article html file updated | 7 February 2020 01:42 CET | Update | https://www.mdpi.com/2076-3417/5/4/1560 |
| article html file updated | 6 May 2019 06:03 CEST | Update | N/A |
| article html file updated | 26 March 2019 15:38 CET | Original file | N/A |
| article pdf uploaded. | 3 December 2015 13:03 CET | Version of Record | https://www.mdpi.com/2076-3417/5/4/1560/pdf |
| article xml uploaded. | 3 December 2015 13:03 CET | Original file | https://www.mdpi.com/2076-3417/5/4/1560/xml |
