| article html file updated | 6 February 2020 18:54 CET | Update | https://www.mdpi.com/2076-3425/5/2/220 |
| article html file updated | 6 May 2019 19:29 CEST | Update | - |
| article html file updated | 26 March 2019 03:12 CET | Update | - |
| article html file updated | 21 August 2015 12:29 CEST | Update | - |
| article html file updated | 7 July 2015 10:59 CEST | Original file | - |
| article xml file uploaded | 7 July 2015 10:59 CEST | Original file | https://www.mdpi.com/2076-3425/5/2/220/xml |
| article pdf uploaded. | 27 May 2015 15:48 CEST | Updated version of record | https://www.mdpi.com/2076-3425/5/2/220/pdf |
| article pdf uploaded. | 22 May 2015 13:25 CEST | Updated version of record | https://www.mdpi.com/2076-3425/5/2/220/pdf-vor |
| article pdf uploaded. | 22 May 2015 11:14 CEST | Version of Record | https://www.mdpi.com/2076-3425/5/2/220/pdf-vor |
