| article html file updated | 7 February 2020 02:28 CET | Update | https://www.mdpi.com/2073-4360/7/12/1532 |
| article html file updated | 6 May 2019 04:30 CEST | Update | N/A |
| article html file updated | 26 March 2019 16:52 CET | Original file | N/A |
| article pdf uploaded. | 21 December 2015 13:45 CET | Version of Record | https://www.mdpi.com/2073-4360/7/12/1532/pdf |
| article xml uploaded. | 21 December 2015 13:45 CET | Original file | https://www.mdpi.com/2073-4360/7/12/1532/xml |
