| article html file updated | 7 February 2020 01:31 CET | Update | https://www.mdpi.com/2075-163X/5/4/528 |
| article html file updated | 6 May 2019 06:27 CEST | Update | N/A |
| article html file updated | 26 March 2019 15:18 CET | Original file | N/A |
| article pdf uploaded. | 30 November 2015 14:01 CET | Version of Record | https://www.mdpi.com/2075-163X/5/4/528/pdf |
| article xml uploaded. | 30 November 2015 14:01 CET | Original file | https://www.mdpi.com/2075-163X/5/4/528/xml |
