| article html file updated | 6 February 2020 18:15 CET | Update | https://www.mdpi.com/2075-4698/5/2/399 |
| article html file updated | 20 September 2019 20:53 CEST | Update | - |
| article html file updated | 6 May 2019 20:48 CEST | Update | - |
| article html file updated | 26 March 2019 01:49 CET | Update | - |
| article html file updated | 21 August 2015 11:29 CEST | Update | - |
| article html file updated | 19 May 2015 11:21 CEST | Original file | - |
| article xml file uploaded | 19 May 2015 11:21 CEST | Original file | https://www.mdpi.com/2075-4698/5/2/399/xml |
| article pdf uploaded. | 30 April 2015 14:33 CEST | Version of Record | https://www.mdpi.com/2075-4698/5/2/399/pdf |
