| article html file updated | 6 February 2020 18:47 CET | Update | https://www.mdpi.com/2073-4468/4/2/103 |
| article html file updated | 6 May 2019 19:43 CEST | Update | - |
| article html file updated | 26 March 2019 02:57 CET | Update | - |
| article html file updated | 21 August 2015 12:21 CEST | Original file | - |
| article supplementary file uploaded. | 20 May 2015 10:10 CEST | - | https://www.mdpi.com/2073-4468/4/2/103#supplementary |
| article pdf uploaded. | 20 May 2015 10:10 CEST | Version of Record | https://www.mdpi.com/2073-4468/4/2/103/pdf |
