| article html file updated | 6 February 2020 18:02 CET | Update | https://www.mdpi.com/2218-1989/5/2/211 |
| article html file updated | 6 May 2019 21:12 CEST | Update | - |
| article html file updated | 26 March 2019 01:24 CET | Update | - |
| article html file updated | 21 August 2015 11:10 CEST | Update | - |
| article html file updated | 9 July 2015 06:46 CEST | Update | - |
| article xml file uploaded | 9 July 2015 06:46 CEST | Update | https://www.mdpi.com/2218-1989/5/2/211/xml |
| article html file updated | 5 May 2015 07:55 CEST | Original file | - |
| article xml file uploaded | 5 May 2015 07:55 CEST | Original file | - |
| article pdf uploaded. | 29 April 2015 16:28 CEST | Updated version of record | https://www.mdpi.com/2218-1989/5/2/211/pdf |
| article supplementary file uploaded. | 24 April 2015 13:26 CEST | - | https://www.mdpi.com/2218-1989/5/2/211#supplementary |
| article pdf uploaded. | 24 April 2015 13:26 CEST | Version of Record | https://www.mdpi.com/2218-1989/5/2/211/pdf-vor |
