| article html file updated | 8 February 2020 04:37 CET | Update | https://www.mdpi.com/2078-2489/8/2/49 |
| article html file updated | 24 September 2019 13:29 CEST | Update | - |
| article html file updated | 4 May 2019 00:19 CEST | Update | - |
| article html file updated | 28 June 2017 13:48 CEST | Update | - |
| article html file updated | 28 April 2017 12:45 CEST | Original file | - |
| article xml uploaded. | 28 April 2017 12:44 CEST | Original file | https://www.mdpi.com/2078-2489/8/2/49/xml |
| article pdf uploaded. | 28 April 2017 12:44 CEST | Version of Record | https://www.mdpi.com/2078-2489/8/2/49/pdf |
