| article html file updated | 6 February 2020 15:59 CET | Update | https://www.mdpi.com/1911-8074/8/1/103 |
| article html file updated | 7 May 2019 00:55 CEST | Update | - |
| article html file updated | 25 March 2019 21:49 CET | Update | - |
| article html file updated | 9 November 2015 10:47 CET | Original file | - |
| article xml file uploaded | 9 November 2015 10:47 CET | Original file | https://www.mdpi.com/1911-8074/8/1/103/xml |
| article pdf uploaded. | 13 February 2015 15:26 CET | Version of Record | https://www.mdpi.com/1911-8074/8/1/103/pdf |
