| article html file updated | 6 February 2020 19:48 CET | Update | https://www.mdpi.com/2218-6581/4/2/223 |
| article html file updated | 6 May 2019 17:33 CEST | Update | N/A |
| article html file updated | 26 March 2019 04:57 CET | Update | N/A |
| article html file updated | 5 November 2015 11:16 CET | Original file | N/A |
| article xml file uploaded | 5 November 2015 11:16 CET | Original file | https://www.mdpi.com/2218-6581/4/2/223/xml |
| article supplementary file uploaded. | 17 June 2015 15:37 CEST | - | https://www.mdpi.com/2218-6581/4/2/223#supplementary |
| article pdf uploaded. | 17 June 2015 15:37 CEST | Version of Record | https://www.mdpi.com/2218-6581/4/2/223/pdf |
