| article html file updated | 6 February 2020 10:34 CET | Update | https://www.mdpi.com/2227-7390/2/3/119 |
| article html file updated | 7 May 2019 11:53 CEST | Update | - |
| article html file updated | 21 March 2019 20:29 CET | Original file | - |
| article pdf uploaded. | 23 July 2014 15:12 CEST | Updated version of record | https://www.mdpi.com/2227-7390/2/3/119/pdf |
| article pdf uploaded. | 9 July 2014 11:33 CEST | Version of Record | https://www.mdpi.com/2227-7390/2/3/119/pdf-vor |
