| article html file updated | 9 February 2020 11:44 CET | Update | https://www.mdpi.com/2304-6740/6/2/38 |
| article html file updated | 2 October 2019 02:06 CEST | Update | - |
| article html file updated | 1 May 2019 07:42 CEST | Update | - |
| article html file updated | 17 April 2019 07:41 CEST | Update | - |
| article html file updated | 29 March 2019 10:54 CET | Update | - |
| article html file updated | 28 June 2018 08:51 CEST | Update | - |
| article html file updated | 29 March 2018 10:36 CEST | Original file | - |
| article xml uploaded. | 29 March 2018 10:34 CEST | Update | https://www.mdpi.com/2304-6740/6/2/38/xml |
| article pdf uploaded. | 29 March 2018 10:34 CEST | Version of Record | https://www.mdpi.com/2304-6740/6/2/38/pdf |
