| article html file updated | 7 February 2020 01:50 CET | Update | https://www.mdpi.com/1424-8220/15/12/29819 |
| article html file updated | 6 May 2019 05:47 CEST | Update | - |
| article html file updated | 26 March 2019 15:52 CET | Original file | - |
| article pdf uploaded. | 4 December 2015 16:06 CET | Version of Record | https://www.mdpi.com/1424-8220/15/12/29819/pdf |
| article xml uploaded. | 4 December 2015 16:06 CET | Original file | https://www.mdpi.com/1424-8220/15/12/29819/xml |
