| article html file updated | 9 February 2020 07:22 CET | Update | https://www.mdpi.com/2304-6740/6/1/30 |
| article html file updated | 30 September 2019 23:32 CEST | Update | - |
| article html file updated | 1 May 2019 16:54 CEST | Update | - |
| article html file updated | 17 April 2019 16:17 CEST | Update | - |
| article html file updated | 29 March 2019 00:52 CET | Update | - |
| article html file updated | 27 March 2018 12:36 CEST | Update | - |
| article html file updated | 23 February 2018 10:05 CET | Original file | - |
| article xml uploaded. | 23 February 2018 10:04 CET | Update | https://www.mdpi.com/2304-6740/6/1/30/xml |
| article xml uploaded. | 23 February 2018 10:04 CET | Original file | - |
| article pdf uploaded. | 23 February 2018 10:04 CET | Version of Record | https://www.mdpi.com/2304-6740/6/1/30/pdf |
