| article html file updated | 6 February 2020 06:42 CET | Update | https://www.mdpi.com/2227-9032/2/1/47 |
| article html file updated | 7 May 2019 19:52 CEST | Update | N/A |
| article html file updated | 21 March 2019 10:57 CET | Update | N/A |
| article html file updated | 29 April 2016 12:07 CEST | Update | N/A |
| article html file updated | 19 August 2015 17:11 CEST | Update | N/A |
| article html file updated | 15 January 2014 15:15 CET | Original file | N/A |
| article xml uploaded. | 15 January 2014 15:15 CET | Original file | https://www.mdpi.com/2227-9032/2/1/47/xml |
| article pdf uploaded. | 14 January 2014 13:32 CET | Updated version of record | https://www.mdpi.com/2227-9032/2/1/47/pdf |
| article pdf uploaded. | 13 January 2014 09:17 CET | Version of Record | https://www.mdpi.com/2227-9032/2/1/47/pdf-vor |
