| article html file updated | 7 February 2020 01:59 CET | Update | https://www.mdpi.com/2072-6643/7/12/5538 |
| article html file updated | 21 September 2019 07:32 CEST | Update | - |
| article html file updated | 6 May 2019 05:29 CEST | Update | - |
| article html file updated | 26 March 2019 16:05 CET | Original file | - |
| article pdf uploaded. | 9 December 2015 11:26 CET | Version of Record | https://www.mdpi.com/2072-6643/7/12/5538/pdf |
| article xml uploaded. | 9 December 2015 11:26 CET | Original file | https://www.mdpi.com/2072-6643/7/12/5538/xml |
