| article html file updated | 6 February 2020 02:23 CET | Update | https://www.mdpi.com/2075-4450/4/2/206 |
| article html file updated | 8 May 2019 04:34 CEST | Update | N/A |
| article html file updated | 20 March 2019 23:11 CET | Update | N/A |
| article html file updated | 17 June 2015 09:49 CEST | Update | N/A |
| article html file updated | 27 January 2015 07:07 CET | Original file | N/A |
| article xml file uploaded | 27 January 2015 07:07 CET | Original file | https://www.mdpi.com/2075-4450/4/2/206/xml |
| article pdf uploaded. | 29 May 2013 15:33 CEST | Version of Record | https://www.mdpi.com/2075-4450/4/2/206/pdf |
