| article html file updated | 6 February 2020 10:28 CET | Update | https://www.mdpi.com/2226-4787/2/3/202 |
| article html file updated | 20 September 2019 10:05 CEST | Update | N/A |
| article html file updated | 7 May 2019 12:06 CEST | Update | N/A |
| article html file updated | 21 March 2019 20:12 CET | Update | N/A |
| article html file updated | 20 August 2015 11:51 CEST | Original file | N/A |
| article pdf uploaded. | 21 July 2014 10:35 CEST | Updated version of record | https://www.mdpi.com/2226-4787/2/3/202/pdf |
| article pdf uploaded. | 4 July 2014 10:38 CEST | Version of Record | https://www.mdpi.com/2226-4787/2/3/202/pdf-vor |
