| article html file updated | 6 February 2020 15:59 CET | Update | https://www.mdpi.com/2079-9292/4/1/150 |
| article html file updated | 7 May 2019 00:56 CEST | Update | - |
| article html file updated | 25 March 2019 21:49 CET | Update | - |
| article html file updated | 21 August 2015 07:42 CEST | Update | - |
| article html file updated | 21 July 2015 05:05 CEST | Original file | - |
| article xml file uploaded | 21 July 2015 05:05 CEST | Original file | https://www.mdpi.com/2079-9292/4/1/150/xml |
| article pdf uploaded. | 13 February 2015 15:19 CET | Version of Record | https://www.mdpi.com/2079-9292/4/1/150/pdf |
