| article html file updated | 9 February 2020 01:18 CET | Update | https://www.mdpi.com/1422-0067/19/1/67 |
| article html file updated | 29 September 2019 12:18 CEST | Update | N/A |
| article html file updated | 2 May 2019 05:54 CEST | Update | N/A |
| article html file updated | 18 April 2019 03:53 CEST | Update | N/A |
| article html file updated | 28 March 2019 11:26 CET | Update | N/A |
| article html file updated | 2 February 2018 09:31 CET | Update | N/A |
| article html file updated | 27 December 2017 07:52 CET | Original file | N/A |
| article xml uploaded. | 27 December 2017 07:50 CET | Original file | https://www.mdpi.com/1422-0067/19/1/67/xml |
| article pdf uploaded. | 27 December 2017 07:50 CET | Version of Record | https://www.mdpi.com/1422-0067/19/1/67/pdf |
