| article html file updated | 6 February 2020 18:16 CET | Update | https://www.mdpi.com/2078-2489/6/2/162 |
| article html file updated | 6 May 2019 20:45 CEST | Update | - |
| article html file updated | 26 March 2019 01:52 CET | Original file | - |
| article pdf uploaded. | 5 May 2015 11:11 CEST | Updated version of record | https://www.mdpi.com/2078-2489/6/2/162/pdf |
| article pdf uploaded. | 4 May 2015 10:09 CEST | Version of Record | https://www.mdpi.com/2078-2489/6/2/162/pdf-vor |
