| article html file updated | 9 February 2020 00:16 CET | Update | https://www.mdpi.com/1422-0067/18/12/2721 |
| article html file updated | 29 September 2019 06:21 CEST | Update | N/A |
| article html file updated | 2 May 2019 08:09 CEST | Update | N/A |
| article html file updated | 18 April 2019 05:58 CEST | Update | N/A |
| article html file updated | 2 January 2018 09:43 CET | Update | N/A |
| article html file updated | 15 December 2017 15:31 CET | Original file | N/A |
| article xml uploaded. | 15 December 2017 15:30 CET | Original file | https://www.mdpi.com/1422-0067/18/12/2721/xml |
| article pdf uploaded. | 15 December 2017 15:30 CET | Version of Record | https://www.mdpi.com/1422-0067/18/12/2721/pdf |
