| article html file updated | 9 February 2020 03:36 CET | Update | https://www.mdpi.com/2076-3921/7/1/18 |
| article html file updated | 30 September 2019 01:16 CEST | Update | N/A |
| article html file updated | 2 May 2019 01:09 CEST | Update | N/A |
| article html file updated | 17 April 2019 23:30 CEST | Update | N/A |
| article html file updated | 28 March 2019 16:46 CET | Update | N/A |
| article html file updated | 1 February 2018 13:54 CET | Update | N/A |
| article html file updated | 19 January 2018 07:38 CET | Original file | N/A |
| article xml uploaded. | 19 January 2018 07:37 CET | Original file | https://www.mdpi.com/2076-3921/7/1/18/xml |
| article pdf uploaded. | 19 January 2018 07:37 CET | Version of Record | https://www.mdpi.com/2076-3921/7/1/18/pdf |
