| article html file updated | 7 February 2020 07:12 CET | Update | https://www.mdpi.com/2073-4441/8/4/147 |
| article html file updated | 5 May 2019 18:45 CEST | Update | - |
| article html file updated | 27 March 2019 01:47 CET | Update | - |
| article html file updated | 28 April 2016 12:25 CEST | Update | - |
| article html file updated | 13 April 2016 11:32 CEST | Original file | - |
| article xml uploaded. | 13 April 2016 11:31 CEST | Original file | https://www.mdpi.com/2073-4441/8/4/147/xml |
| article pdf uploaded. | 13 April 2016 11:31 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/4/147/pdf |
