| article html file updated | 6 February 2020 20:48 CET | Update | https://www.mdpi.com/2309-608X/1/2/130 |
| article html file updated | 21 September 2019 00:26 CEST | Update | N/A |
| article html file updated | 6 May 2019 15:29 CEST | Update | N/A |
| article html file updated | 26 March 2019 06:54 CET | Update | N/A |
| article html file updated | 11 December 2018 08:41 CET | Update | N/A |
| article html file updated | 21 August 2015 14:59 CEST | Original file | N/A |
| article pdf uploaded. | 17 July 2015 16:39 CEST | Version of Record | https://www.mdpi.com/2309-608X/1/2/130/pdf |
