| article html file updated | 9 February 2020 01:10 CET | Update | https://www.mdpi.com/1660-4601/15/1/31 |
| article html file updated | 29 September 2019 11:27 CEST | Update | N/A |
| article html file updated | 2 May 2019 06:13 CEST | Update | N/A |
| article html file updated | 18 April 2019 04:11 CEST | Update | N/A |
| article html file updated | 28 March 2019 11:04 CET | Update | N/A |
| article html file updated | 1 February 2018 08:38 CET | Update | N/A |
| article html file updated | 31 January 2018 08:32 CET | Update | N/A |
| article html file updated | 25 December 2017 11:35 CET | Original file | N/A |
| article xml uploaded. | 25 December 2017 11:33 CET | Update | https://www.mdpi.com/1660-4601/15/1/31/xml |
| article xml uploaded. | 25 December 2017 11:33 CET | Original file | N/A |
| article pdf uploaded. | 25 December 2017 11:33 CET | Version of Record | https://www.mdpi.com/1660-4601/15/1/31/pdf |
