| article html file updated | 8 February 2020 03:44 CET | Update | https://www.mdpi.com/2078-2489/8/2/45 |
| article html file updated | 24 September 2019 08:35 CEST | Update | - |
| article html file updated | 4 May 2019 01:57 CEST | Update | - |
| article html file updated | 28 June 2017 13:47 CEST | Update | - |
| article html file updated | 17 April 2017 11:21 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 11:19 CEST | Original file | https://www.mdpi.com/2078-2489/8/2/45/xml |
| article pdf uploaded. | 17 April 2017 11:19 CEST | Version of Record | https://www.mdpi.com/2078-2489/8/2/45/pdf |
