| article html file updated | 6 February 2020 20:39 CET | Update | https://www.mdpi.com/2227-9075/2/3/422 |
| article html file updated | 6 May 2019 15:48 CEST | Update | N/A |
| article html file updated | 26 March 2019 06:34 CET | Update | N/A |
| article html file updated | 21 August 2015 14:47 CEST | Original file | N/A |
| article supplementary file uploaded. | 14 July 2015 13:28 CEST | - | https://www.mdpi.com/2227-9075/2/3/422#supplementary |
| article pdf uploaded. | 14 July 2015 13:28 CEST | Version of Record | https://www.mdpi.com/2227-9075/2/3/422/pdf |
