| article html file updated | 6 February 2020 04:03 CET | Update | https://www.mdpi.com/1911-8074/2/1/118 |
| article html file updated | 8 May 2019 01:08 CEST | Update | - |
| article html file updated | 21 March 2019 03:45 CET | Update | - |
| article html file updated | 20 July 2017 09:58 CEST | Update | - |
| article html file updated | 20 July 2017 09:57 CEST | Update | - |
| article html file updated | 20 July 2017 09:55 CEST | Original file | - |
| article xml uploaded. | 20 July 2017 09:54 CEST | Update | https://www.mdpi.com/1911-8074/2/1/118/xml |
| article pdf uploaded. | 28 August 2013 16:34 CEST | Version of Record | https://www.mdpi.com/1911-8074/2/1/118/pdf |
