| article html file updated | 7 February 2020 03:38 CET | Update | https://www.mdpi.com/2073-4441/8/1/26 |
| article html file updated | 6 May 2019 02:11 CEST | Update | - |
| article html file updated | 26 March 2019 18:52 CET | Original file | - |
| article pdf uploaded. | 21 January 2016 14:03 CET | Updated version of record | https://www.mdpi.com/2073-4441/8/1/26/pdf |
| article pdf uploaded. | 20 January 2016 08:50 CET | Version of Record | https://www.mdpi.com/2073-4441/8/1/26/pdf-vor |
| article xml uploaded. | 20 January 2016 08:50 CET | Original file | https://www.mdpi.com/2073-4441/8/1/26/xml |
