| article html file updated | 7 February 2020 03:31 CET | Update | https://www.mdpi.com/2073-4352/6/1/12 |
| article html file updated | 6 May 2019 02:26 CEST | Update | N/A |
| article html file updated | 26 March 2019 18:37 CET | Original file | N/A |
| article pdf uploaded. | 16 January 2016 10:49 CET | Version of Record | https://www.mdpi.com/2073-4352/6/1/12/pdf |
| article xml uploaded. | 16 January 2016 10:49 CET | Original file | https://www.mdpi.com/2073-4352/6/1/12/xml |
