| article html file updated | 6 February 2020 00:26 CET | Update | https://www.mdpi.com/2218-1989/3/1/101 |
| article html file updated | 8 May 2019 08:44 CEST | Update | - |
| article html file updated | 20 March 2019 18:18 CET | Update | - |
| article html file updated | 17 June 2015 06:16 CEST | Update | - |
| article html file updated | 7 January 2014 12:28 CET | Original file | - |
| article xml file uploaded | 7 January 2014 12:28 CET | Original file | https://www.mdpi.com/2218-1989/3/1/101/xml |
| article supplementary file uploaded. | 31 December 2013 10:40 CET | - | https://www.mdpi.com/2218-1989/3/1/101#supplementary |
| article pdf uploaded. | 6 February 2013 09:15 CET | Version of Record | https://www.mdpi.com/2218-1989/3/1/101/pdf |
