| article html file updated | 7 February 2020 01:59 CET | Update | https://www.mdpi.com/2073-4360/7/12/1536 |
| article html file updated | 6 May 2019 05:29 CEST | Update | N/A |
| article html file updated | 26 March 2019 16:05 CET | Original file | N/A |
| article pdf uploaded. | 9 December 2015 12:01 CET | Version of Record | https://www.mdpi.com/2073-4360/7/12/1536/pdf |
| article xml uploaded. | 9 December 2015 12:01 CET | Original file | https://www.mdpi.com/2073-4360/7/12/1536/xml |
