| article html file updated | 6 February 2020 12:21 CET | Update | https://www.mdpi.com/1911-8074/7/3/110 |
| article html file updated | 20 September 2019 13:05 CEST | Update | - |
| article html file updated | 7 May 2019 08:04 CEST | Update | - |
| article html file updated | 22 March 2019 01:12 CET | Update | - |
| article html file updated | 20 August 2015 20:06 CEST | Original file | - |
| article pdf uploaded. | 24 September 2014 15:34 CEST | Updated version of record | https://www.mdpi.com/1911-8074/7/3/110/pdf |
| article pdf uploaded. | 24 September 2014 14:44 CEST | Updated version of record | https://www.mdpi.com/1911-8074/7/3/110/pdf-vor |
| article pdf uploaded. | 19 September 2014 16:23 CEST | Version of Record | https://www.mdpi.com/1911-8074/7/3/110/pdf-vor |
