| article html file updated | 6 February 2020 10:16 CET | Update | https://www.mdpi.com/2227-7382/2/3/303 |
| article html file updated | 7 May 2019 12:30 CEST | Update | N/A |
| article html file updated | 21 March 2019 19:42 CET | Update | N/A |
| article html file updated | 16 February 2017 06:59 CET | Update | N/A |
| article html file updated | 20 August 2015 11:02 CEST | Original file | N/A |
| article pdf uploaded. | 27 June 2014 12:10 CEST | Updated version of record | https://www.mdpi.com/2227-7382/2/3/303/pdf |
| article supplementary file uploaded. | 26 June 2014 11:35 CEST | - | https://www.mdpi.com/2227-7382/2/3/303#supplementary |
| article pdf uploaded. | 26 June 2014 11:35 CEST | Version of Record | https://www.mdpi.com/2227-7382/2/3/303/pdf-vor |
