| article html file updated | 6 February 2020 15:09 CET | Update | https://www.mdpi.com/2077-0383/4/1/150 |
| article html file updated | 7 May 2019 02:32 CEST | Update | - |
| article html file updated | 25 March 2019 20:27 CET | Update | - |
| article html file updated | 21 August 2015 05:43 CEST | Update | - |
| article html file updated | 25 June 2015 12:08 CEST | Original file | - |
| article xml file uploaded | 25 June 2015 12:08 CEST | Original file | https://www.mdpi.com/2077-0383/4/1/150/xml |
| article pdf uploaded. | 13 January 2015 15:34 CET | Version of Record | https://www.mdpi.com/2077-0383/4/1/150/pdf |
