| article html file updated | 9 February 2020 03:19 CET | Update | https://www.mdpi.com/1999-4907/9/1/37 |
| article html file updated | 29 September 2019 23:36 CEST | Update | - |
| article html file updated | 2 May 2019 01:43 CEST | Update | - |
| article html file updated | 18 April 2019 00:01 CEST | Update | - |
| article html file updated | 28 March 2019 16:10 CET | Update | - |
| article html file updated | 1 February 2018 13:01 CET | Update | - |
| article html file updated | 16 January 2018 18:14 CET | Original file | - |
| article xml uploaded. | 16 January 2018 18:13 CET | Original file | https://www.mdpi.com/1999-4907/9/1/37/xml |
| article pdf uploaded. | 16 January 2018 18:13 CET | Version of Record | https://www.mdpi.com/1999-4907/9/1/37/pdf |
