| article html file updated | 6 February 2020 18:50 CET | Update | https://www.mdpi.com/2227-9040/3/2/178 |
| article html file updated | 6 May 2019 19:35 CEST | Update | N/A |
| article html file updated | 26 March 2019 03:05 CET | Update | N/A |
| article html file updated | 21 August 2015 12:26 CEST | Update | N/A |
| article html file updated | 30 June 2015 03:11 CEST | Original file | N/A |
| article xml file uploaded | 30 June 2015 03:11 CEST | Original file | https://www.mdpi.com/2227-9040/3/2/178/xml |
| article pdf uploaded. | 22 May 2015 09:29 CEST | Updated version of record | https://www.mdpi.com/2227-9040/3/2/178/pdf |
| article pdf uploaded. | 21 May 2015 11:13 CEST | Version of Record | https://www.mdpi.com/2227-9040/3/2/178/pdf-vor |
